When it is said that “the Word was made flesh,”1170this is not to be understood as if the Word was transmuted into flesh, or blended with flesh. Choosing from the womb of the Virgin a temple for his residence, he who was the Son of God, became also the Son of man, not by a confusion of substance, but by a unity of person. For we assert such a connection and union of the Divinity with the humanity, that each nature retains its properties entire, and yet both together constitute one Christ. If any thing among men can be found to resemble so great a mystery, man himself appears to furnish the most apposite similitude; being evidently composed of two substances, of which, however, neither is so confounded with the other, as not to retain its distinct nature. For the soul is not [pg 436] the body, nor is the body the soul. Wherefore that is predicated separately of the soul, which cannot be at all applied to the body. On the contrary, that is predicated of the body, which is totally incompatible with the soul. And that is predicated of the whole man, which cannot with propriety be understood either of the soul or of the body alone. Lastly, the properties of the soul are transferred to the body, and the properties of the body to the soul; yet he that is composed of these two parts is no more than one man. Such forms of expression signify that there is in man one person composed of two distinct parts; and that there are two different natures united in him to constitute that one person. The Scriptures speak in a similar manner respecting Christ. They attribute to him, sometimes those things which are applicable merely to his humanity; sometimes those things which belong peculiarly to his Divinity; and not unfrequently those things which comprehend both his natures, but are incompatible with either of them alone. And this union of the two natures in Christ they so carefully maintain, that they sometimes attribute to one what belongs to the other—a mode of expression which the ancient writers called a communication of properties.
II. These things might be liable to objection, if the Scripture did not abound with passages, which prove that none of them is of human invention. What Christ asserted concerning himself, “Before Abraham was, I am,”1171was very inapplicable to his humanity. I am aware of the cavil with which erroneous spirits would corrupt this passage,—that he was before all ages, because he was even then foreknown as the Redeemer, as well in the decree of the Father, as in the minds of the faithful. But as he clearly distinguishes the day of his manifestation from his eternal essence, and professedly urges his antiquity, in proof of his possessing an authority in which he excels Abraham, there is no doubt that he challenges to himself what is peculiar to the Deity. Paul asserts him to be “the first-born of every creature, that he is before all things, and that by him all things consist:”1172he declares himself, that he “had a glory with the Father before the world was,”1173and that he coöperates with the Father.1174These things are equally incompatible with humanity. It is certain that these, and such as these, are peculiar attributes of Divinity. But when he is called the “servant” of the Father;1175when it is stated that he “increased in wisdom and stature, and in favour with God and man;”1176that he seeks not his own glory; that he knows not the last day; that he speaks not of himself; that he does not his own will; that he was [pg 437] seen and handled;1177all this belongs solely to his humanity. For as he is God, he is incapable of any augmentation whatever; he does all things for his own glory, and there is nothing concealed from him; he does all things according to the decision of his own will, and is invisible and intangible. And yet he ascribes these things not to his human nature separately, but to himself, as though they belonged to the person of the Mediator. But the communication of properties is exemplified in the assertion of Paul that “God purchased the Church with his own blood,”1178and that “the Lord of glory” was “crucified.”1179Also in what John says, that they had “handled the Word of life.”1180God has no blood; he is not capable of suffering, or of being touched with hands; but since he, who was at once the true God and the man Christ Jesus, was crucified and shed his blood for us, those things which were performed in his human nature are improperly, yet not without reason, transferred to the Divinity. There is a similar example of this, where John teaches us, that “God laid down his life for us.”1181There also the property of the humanity is transferred to the other nature. Again, when Christ, while he still lived on the earth, said, “No man hath ascended up to heaven, but he that came down from heaven, even the Son of man which is in heaven:”1182as man, and in the body which he had assumed, he certainly was not at that time in heaven, but because he was both God and man, on account of the union of both natures, he attributed to one what belonged to the other.
III. But the clearest of all the passages declarative of the true substance of Christ are those which comprehend both the natures together; such as abound in the Gospel of John. For it is not with exclusive reference to the Deity or the humanity, but respecting the complex person composed of both, that we find it there stated; that he has received of the Father power to forgive sins, to raise up whom he will, to bestow righteousness, holiness, and salvation; that he is appointed to be the Judge of the living and the dead, that he may receive the same honour as the Father;1183finally, that he is “the light of the world,” “the good shepherd,” “the only door,” “the true vine.”1184For with such prerogatives was the Son of God invested at his manifestation in the flesh; which although he enjoyed with the Father before the creation of the world, yet not in the same manner or on the same account; and which could not be conferred on a mere man. In the same sense also it is reasonable to understand the declaration of Paul, that after the last judgment [pg 438] Christ “shall deliver up the kingdom to God, even the Father.”1185Now, the kingdom of the Son of God, which had no beginning, will never have any end. But as he concealed himself under the meanness of the flesh, and humbled himself by assuming the form of a servant, and laid aside his external majesty in obedience to the Father,1186and after having undergone this humiliation, was at length crowned with glory and honour, and exalted to supreme dominion,1187that before him “every knee should bow;”1188so he shall then surrender to the Father that name and crown of glory, and all that he has received from the Father, “that God may be all in all.”1189For why has power and dominion been given to him, but that the Father may rule us by his hand? In this sense he is also said to sit at the right hand of the Father. But this is only temporary, till we can enjoy the immediate contemplation of the Deity. And here it is impossible to excuse the error of the ancients, who, for want of sufficient attention to the person of the Mediator, obscure the genuine sense of almost all the doctrine which we have in the Gospel of John, and involve themselves in many difficulties. Let this maxim, then, serve us as a key to the true sense, that those things which relate to the office of the Mediator, are not spoken simply of his Divine or of his human nature. Christ therefore will reign, till he comes to judge the world, forasmuch as he connects us with the Father as far as is compatible with our infirmity. But when we shall participate the glory of heaven, and see God as he is, then, having fulfilled the office of Mediator, he will cease to be the ambassador of the Father, and will be content with that glory which he enjoyed before the creation of the world. Nor is the title of Lord peculiarly applied to the person of Christ in any other respect, than as it marks an intermediate station between God and us. This is the meaning of that expression of Paul, “One God, of whom are all things; and one Lord, by whom are all things;”1190namely, to whom the Father has committed a temporary dominion, till we shall be admitted to the immediate presence of his Divine majesty; which will be so far from sustaining any diminution by his surrender of the kingdom to the Father, that it will exhibit itself in far superior splendour. For then also God will cease to be the head of Christ, because the Deity of Christ himself, which is still covered with a veil, will shine forth in all its native effulgence.
IV. And this observation, if the reader make a judicious application of it, will be of great use towards the solution of many difficulties. For it is surprising how much ignorant [pg 439] persons, and even some who are not altogether destitute of learning, are perplexed by such forms of expression, as they find attributed to Christ, which are not exactly appropriate either to his Divinity or to his humanity. This is for want of considering that they are applicable to his complex person, consisting of God and man, and to his office of Mediator. And indeed we may see the most beautiful coherence between all these things, if they have only a sober expositor, to examine such great mysteries with becoming reverence. But these furious and frantic spirits throw every thing into confusion. They lay hold of the properties of his humanity, to destroy his Divinity; on the other hand, they catch at the attributes of his Divinity, to destroy his humanity; and by what is spoken of both natures united, but is applicable separately to neither, they attempt to destroy both. Now, what is this but to contend that Christ is not man, because he is God; that he is not God, because he is man; and that he is neither man nor God, because he is at once both man and God? We conclude, therefore, that Christ, as he is God and man, composed of these two natures united, yet not confounded, is our Lord and the true Son of God, even in his humanity; though not on account of his humanity. For we ought carefully to avoid the error of Nestorius, who, attempting rather to divide than to distinguish the two natures, thereby imagined a double Christ. This we find clearly contradicted by the Scripture, where the appellation of “the Son of God” is given to him who was born of the Virgin, and the Virgin herself is called “the mother of our Lord.”1191We must also beware of the error of Eutyches, lest while we aim to establish the unity of Christ's person, we destroy the distinction of his two natures. For we have already cited so many testimonies, where his Divinity is distinguished from his humanity, and the Scripture abounds with so many others, that they may silence even the most contentious. I shall shortly subjoin some, in order to a more complete refutation of that notion. At present one passage shall suffice us; for Christ would not have styled his body “a temple,”1192if it had not been the residence of the Divinity, and at the same time distinct from it. Wherefore, as Nestorius was justly condemned in the council of Ephesus, so also was Eutyches afterwards in the councils of Constantinople and Chalcedon; for to confound the two natures in Christ, and to separate them, are equally wrong.
V. But in our time also there has arisen a heretic equally pestilent, Michael Servetus, who in the place of the Son of God has substituted an imaginary being composed of the [pg 440] essence of God, spirit, flesh, and three uncreated elements. In the first place, he denies Christ to be the Son of God, in any other respect than as he was begotten by the Holy Spirit in the womb of the Virgin. But his subtlety tends to subvert the distinction of the two natures, and thereby to represent Christ as something composed of God and man, and yet neither God nor man. For this is the principal point which he constantly endeavours to establish, that before Christ was manifested in the flesh, there were in God only some shadowy figures; the truth or effect of which had no real existence till the Word, who had been destined to this honour, actually began to be the Son of God. Now, we confess that the Mediator, who was born of the Virgin, is properly the Son of God. Nor indeed could the man Christ be a mirror of the inestimable grace of God, if this dignity had not been conferred on him, to be, and to be called, “the only begotten Son of God.” The doctrine of the Church, however, remains unshaken, that he is accounted the Son of God, because, being the Word begotten by the Father before all ages, he assumed the human nature in a hypostatical union. By the “hypostatical union” the ancients expressed the combination of two natures constituting one person. It was invented to refute the error of Nestorius, who imagined the Son of God to have dwelt in flesh in such a manner as, notwithstanding that, to have had no real humanity. Servetus falsely accuses us of making two Sons of God, when we say that the eternal Word was the Son of God, before he was clothed with flesh; as though we affirmed any other than that he was manifested in the flesh. For if he was God before he became man, it is not to be inferred that he began to be a new God. There is no more absurdity in affirming that the Son of God appeared in the flesh, who nevertheless was always the Son of God by eternal generation. This is implied in the words of the angel to Mary: “That holy thing which shall be born of thee shall be called the Son of God;”1193as though he had said, that the name of the Son, which had been in obscurity under the law, was about to be celebrated and universally known. Consistent with this is the representation of Paul; that through Christ we are the sons of God, and may freely and confidently cry, Abba, Father.1194But were not the holy patriarchs in ancient times numbered among the children of God? Yes; and depending on this claim, they invoked God as their Father. But because, since the introduction of the only begotten Son of God into the world, the celestial paternity has been more clearly revealed, Paul mentions this [pg 441] as the privilege of the kingdom of Christ. It must, however, be steadily maintained, that God never was a Father, either to angels or to men, but with reference to his only begotten Son; and especially that men, whom their own iniquity renders odious to God, are his sons by gratuitous adoption, because Christ is his Son by nature. Nor is there any force in the cavil of Servetus, that this depends on the filiation which God has decreed in himself; because we are not here treating of figures, as expiation was represented by the blood of the sacrifices: but as they could not be the sons of God in reality, unless their adoption were founded on this head, it is unreasonable to detract from the head, that which is common to all the members. I go further: since the Scripture calls angels “the children of God,”1195whose enjoyment of such high dignity depended not on the future redemption, yet it is necessary that Christ should precede them in order, seeing it is by him that they are connected with the Father. I will briefly repeat this observation, and apply the same to the human race. Since angels and men were originally created in such a condition, that God was the common Father of both, if there be any truth in the assertion of Paul, “that Christ was before all things, the head of the body, and the first-born of every creature, that in all things he might have the preëminence,”1196I conceive I am right in concluding, that he was also the Son of God before the creation of the world.
VI. But if his filiation (so to speak) commenced at the time of his manifestation in the flesh, it will follow that he was the Son also in respect of his human nature. Servetus and other heretics maintain that Christ, who appeared in the flesh, was the Son of God; because out of the flesh he could not be entitled to this appellation. Now, let them answer me, whether he be the Son according to both natures, and in respect of both. So indeed they idly pretend; but Paul teaches us very differently. We confess that Christ is called “the Son” in his human nature, not as the faithful are, merely by adoption and grace, but the true and natural, and therefore the only Son; that by this character he may be distinguished from all others. For we, who are regenerated to a new life, are honoured by God with the title of sons; but the appellation of “his true and only begotten Son” he gives to Christ alone. But among such a multitude of brethren, how can he be the only Son, unless he possess by nature what we have received as a gift? And we extend this honour to the whole person of the Mediator, that he who was born of the Virgin, and offered himself on the cross as a victim to the Father, is truly and properly [pg 442] the Son of God; but nevertheless with respect to his Deity, as Paul suggests, when he says that he was “separated unto the gospel of God, which he had promised afore, concerning his Son Jesus Christ our Lord, which was made of the seed of David according to the flesh, and declared to be the Son of God with power.”1197When he distinctly denominates him the Son of David according to the flesh, why should he particularly say that he was declared to be the Son of God with power, unless he intended to suggest that this dignity depended not on that flesh, but on something else? For in the same sense in which he says in another place that “he was crucified through weakness, yet that he liveth by the power of God,” so in this passage he introduces the difference between the two natures. They certainly must be constrained to admit, that as he has received of his mother that which causes him to be called the Son of David, so he has from his Father that which constitutes him the Son of God, and that this is something distinct and different from his humanity. The Scripture distinguishes him by two names, calling him sometimes “the Son of God,” sometimes “the Son of man.” With respect to the latter, it cannot be disputed that he is styled the “Son of man,” in conformity to the common idiom of the Hebrew language, because he is one of the posterity of Adam. I contend, on the other hand, that he is denominated “the Son of God” on account of his Deity and eternal existence; because it is equally reasonable that the appellation of “Son of God” should be referred to the Divine nature, as that that of “Son of man” should be referred to the human nature. In short, in the passage which I have cited, “that he, who was made of the seed of David according to the flesh, was declared to be the Son of God with power,” Paul intends the same as he teaches us in another place, that “Christ, who as concerning the flesh came of the Jews, is God blessed for ever.” But if the distinction of the two natures be expressed in both these passages, by what authority will they deny that he is the Son of God in respect of his Divine nature, who according to the flesh is likewise the Son of man?
VII. They clamorously urge in support of their error that God is said “not to have spared his own Son,”1198and that the angel directed that the very same who was to be born of the Virgin, should be called “the Son of the Highest.”1199But to prevent their glorying in so futile an objection, let them accompany us in a brief examination of the validity of their reasoning. For if it be rightly concluded, that he began to be the Son of God at his conception, because he that is [pg 443] conceived is called his Son, it will follow that he began to be the Word at his manifestation in the flesh, because John tells us that “he declares that, which his hands have handled, of the Word of life.”1200So when they read the following address of the prophet, “Thou, Bethlehem Ephratah, though thou be little among the thousands of Judah, yet out of thee shall he come forth unto me that is to be Ruler in Israel, whose goings forth have been from of old, from everlasting, or from the days of eternity,”1201what interpretation will they be obliged to adopt, if they determine to pursue such a mode of argumentation? For I have declared that we by no means coincide with Nestorius, who imagined two Christs. According to our doctrine, Christ has made us the sons of God, together with himself, by the privilege of a fraternal union, because he is, in our nature which he assumed, the only begotten Son of God. And Augustine judiciously apprizes us, “that it is an illustrious mirror of the wonderful and singular grace of God, that Jesus Christ, considered as man, obtained honour which he could not merit.” From his very birth, therefore, was Christ adorned, even in his human nature, with the dignity of being the Son of God. Yet in the unity of person we must not imagine such a confusion, as to destroy that which is peculiar to Deity. For it is no more unreasonable, that the eternal Word of God and the man Christ Jesus, the two natures being united into one person, should be called the Son of God in different senses, than that he should be styled, in various respects, sometimes the Son of God, sometimes the Son of man. Nor are we any more embarrassed with the other cavil of Servetus, that before Christ appeared in the flesh, he is no where called the Son of God, but in a figurative sense. For though the description of him then was rather obscure, yet since it has now been clearly proved, that he was the eternal God no otherwise than as he was the Word begotten of the eternal Father, and that this name is applicable to him in the character of Mediator which he has assumed, only because he is God manifested in the flesh; and that God the Father would not have been thus denominated from the beginning, unless there had even then been a mutual relation to the Son, who is the source of all kindred or paternity in heaven and in earth;1202the inference is clear, that even under the law and the prophets he was the Son of God, before this name was commonly used in the Church. If the contention be merely about the word, Solomon, in speaking of the infinite sublimity of God, affirms his Son to be incomprehensible as well as himself: “What is his name,” says he, “and what is his Son's name, if thou canst tell?”1203I am aware that this testimony will not have [pg 444] sufficient weight with contentious persons, nor indeed do I lay much stress on it, only that it fixes the charge of a malicious cavil on those who deny that Christ is the Son of God, any otherwise than because he has become man. It must also be remarked that all the most ancient writers have with one accord so unequivocally asserted the same doctrine, that it argues impudence equally ridiculous and detestable in those who dare to represent us as opposing Irenæus and Tertullian, who both acknowledge that Jesus Christ, who at length made a visible appearance, was always the invisible Son of God.
VIII. But although Servetus has accumulated many horrible and monstrous notions, to which some of his brethren, perhaps, would refuse to subscribe, yet, whoever they are that acknowledge not Christ to be the Son of God, except in the human nature, if we press them closely, we shall find that this title is admitted by them on no other ground than because he was conceived of the Holy Spirit in the womb of the Virgin; as the Manichæans formerly pretended that man received his soul by emanation from God, because it is said that God breathed into Adam the breath of life.1204For they lay such stress on the name of Son, that they leave no difference between the two natures, but tell us, in a confused manner, that Christ is the Son of God, considered as man, because his human nature was begotten by God. Thus the eternal generation of Wisdom, of which Solomon speaks,1205is destroyed, and no notice is taken of the Deity in the Mediator, or a phantom is substituted instead of his humanity. It might indeed be useful to refute the grosser fallacies of Servetus, with which he has fascinated himself and others, that the pious reader, admonished by this example, may preserve himself within the bounds of sobriety and modesty; yet I conceive this will be unnecessary here, as I have already done it in a separate treatise. The substance of them all is, that the Son of God was from the beginning an ideal existence, and that even then he was predestinated to be a man who was to be the essential image of God. Nor does he acknowledge any other word of God than what consists in an external splendour. His generation he explains thus: that there existed in God from the beginning a will to beget a Son, which was carried into effect by his actual formation. He likewise confounds the Spirit with the Word, by asserting that God distributed the invisible Word and Spirit into body and soul. In short, he puts the prefiguration of Christ in the place of his generation; and affirms that he who was then in external appearance a shadowy Son, was at length begotten by the Word, to which he attributes the properties of seed. Whence it will follow, that the meanest [pg 445] animals are equally the children of God, because they were created of the original seed of the Word of God. For though he compounds Christ of three uncreated elements, to countenance the assertion that he is begotten of the essence of God, yet he pretends him to have been the first-born among creatures in such a sense, that even inanimate substances, according to their rank, possess the same essential Divinity. And that he may not seem to despoil Christ of his Deity, he asserts that his flesh is coëssential with God, and that the Word was made flesh by a conversion of the humanity into Deity. Thus, while he cannot conceive Christ to be the Son of God, unless his flesh proceeded from the essence of God, and were reconverted into Deity, he annihilates the eternal hypostasis of the Word, and deprives us of the Son of David, the promised Redeemer. He frequently indeed repeats this, that the Son was begotten of God by knowledge and predestination, but that at length he was made man of those materials, which in the beginning appeared with God in the three elements, and which afterwards appeared in the first light of the world, in the cloud, and in the pillar of fire. Now, how shamefully he contradicts himself, it would be too tedious to relate. From this summary the judicious reader will conclude, that by the subtle fallacies of this heretic, the hope of salvation is completely extinguished. For if the body were the Deity itself, it would no longer be the temple of it. Now, we can have no Redeemer, except him who became man, by being really begotten of the seed of Abraham and David according to the flesh. Servetus makes a very improper use of the language of John, that “the word was made flesh;” for while it opposes the error of Nestorius, it is as far from affording the least countenance to this impious notion, which originated with Eutyches. The sole design of the evangelist was, to assert the union of the two natures in one person.