Article XIII

If any of those who are reconciled during the period of grace or after its expiry should fail to confess all their own sins and all that they know of the sins of others, especially in grave cases, and should such omission arise not from forgetfulness but from malice, as may afterwards be proved by witnesses, since it is clear that the said reconciled have perjured themselves, and it must be presumed that their reconciliation was simulated, although they may have been absolved let them be proceeded against as impenitent heretics as soon as the said fiction and perjury are discovered.

Similarly if any person reconciled at the time of the edict of grace or afterwards, shall boast himself in public in such a manner that this can be proved, saying that he did not commit the sins to which he confessed, he must be deemed impenitent and a simulated convert, and the inquisitors shall proceed against him as if he were not reconciled.