Tertullian

“ And so it is becoming that learners desire baptism, but do not hastily receive it: for he who desires it, honours it; he who hastily receives it, disdains it: in the one appears modesty, in the other arrogance; the former satisfies, the latter neglects it; the former covets to merit it, but the latter promises it to himself as a due return; the former takes, the latter usurps it. Whom would you judge worthier, except one who is more amended? whom more amended, except one who is more timid, and on that account has fulfilled the duty of true repentance? ”

“ Moreover, a presumptuous confidence in baptism introduces all kind of vicious delay and tergiversation with regard to repentance; for, feeling sure of undoubted pardon of their sins, men meanwhile steal the intervening time, and make it for themselves into a holiday-time [4] for sinning, rather than a time for learning not to sin. Further, how inconsistent is it to expect pardon of sins (to be granted) to a repentance which they have not fulfilled! ”

“ Who, then, is pre-eminent in goodness? he who is not allowed, or he whom it displeases, to be evil? he who is bidden, or he whose pleasure it is, to be free from crime? Let us, then, neither keep our hands from theft unless the hardness of bars withstand us, nor refrain our eyes from the concupiscence of fornication unless we be withdrawn by guardians of our persons, if no one who has surrendered himself to the Lord is to cease sinning unless he be bound thereto by baptism. ”