10. The other virtues enjoined by Peter are easily recognized—"Compassionate, loving as brethren, tenderhearted, and humbleminded" [Luther translates "friendly"—courteous]. These particularly teach that Christians should esteem one another. God has subjected them all to love and has united them, with the design that they shall be of one heart and soul, and each care for the other as for himself. Peter's exhortation was especially called for at that time, when Christians were terribly persecuted. Here a pastor, there a citizen, was thrown into prison, driven from wife, child, house and home, and finally executed. Such things happen even now, and may become yet more frequent considering that unfortunate people are harassed by tyrants, or led away by the Turks, and Christians are thus dispersed in exile here and there. Wherever by his Word and faith God has gathered a church, and that spiritual unity, the bond of Christianity, exists in any measure, there the devil has no peace. If he cannot effect the destruction of that church by factiousness, he furiously persecutes it. Then it is that body, life and everything we have must be jeopardized—put to the stake—for the sake of the Church.
11. Christians, according to Peter, should, in the bond of a common heart and mind, sympathetically share the troubles and sufferings of their brethren in the faith, whoever and wherever the brethren may be. They are to enter into such distresses as if themselves suffering, and are to reason: "Behold, these suffer for the sake of my precious faith, and standing at the front, are exposed to the devil, while I have peace. It does not become me to rejoice in my security and to manifest my pleasure. For what befalls my dear brethren affects me, and my blessings are the cause of their misfortune. I must participate in their suffering as my own." According to the admonition of Hebrews 13, 3: "Remember them that are in bonds, as bound with them; that is, as if in the same bonds and distress. Remember them that are illtreated, as being yourselves also in the body;" as members of the same body.
12. We are all bound to one another, just as in the body one member is bound to another. As you know by your own physical experience, "Whether one member suffereth, all the members suffer with it; or one member is honored, all the members rejoice with it," as Paul says in 1 Corinthians 12, 26. Note how, when a foot is trodden upon or a finger pinched, the whole body is affected: eyes twitch, nose is contorted, mouth cries out—all the members are ready to rescue and help. No one member can forsake the others. In reality not the foot or the finger is injured, but the whole body suffers the accident. On the other hand, benefit received by one member is pleasing to all, and the whole body rejoices with it. Now the same principle should hold in the Church, because it likewise is one body of many members with one mind and heart. Such unity naturally entails the participation by each individual in the good and evil of every other one.
13. This virtue of sympathy, resulting as it does from a unity of mind and faith, is impossible to the world. In the world every man looks only upon what benefits himself and regards not how others, especially the godly, fare. Indeed, the world is capable of scornful smiles and extreme pleasure at sight of Christians in poverty and distress, and in their sufferings it can give them vinegar and gall to drink. But you who claim to be a Christian, should know it is yours to share the sufferings of your brethren and to prove your heartfelt sympathy with them. If you cannot do more, at least show it with comforting words or prayer. Their suffering concerns you as well as themselves, and you must expect the same afflictions from the devil and the wicked world.