Tertullian

“ But all such are ignorant of the apostle as understand anything in a sense contrary to the nature and design of the man himself, contrary to the norm and rule of his doctrines; so as to presume that he, a teacher of every sanctity, even by his own example, an execrator and expiator of every impurity, and universally consistent with himself in these points, restored ecclesiastical privileges to an incestuous person sooner than to some more mild offender. ”

“ For by his restoration to concorporate unity with the Church, righteousness is made to have fellowship with iniquity, darkness has communion with light, Belial is consonant with Christ, and believer shares the sacraments with unbeliever. And idols may see to themselves: the very vitiator of the temple of God is converted into a temple of God: for here, too, he says, ‘For ye are a temple of the living God. ”

“ For what kind (of hypothesis) is it, that the very moment after making a largess of restoration to the privileges of ecclesiastical peace to an incestuous fornicator, he should forthwith have proceeded to accumulate exhortations about turning away from impurities, about pruning away of blemishes, about exhortations to deeds of sanctity, as if he had decreed nothing of a contrary nature just before? Compare, in short, (and see) whether it be his province to say, “Wherefore, having this ministration, in accordance with (the fact) that we have obtained mercy, we faint not ”