Origen

“ And you will also meet with a like dilemma in regard to the righteous man turning away from his righteousness and committing unrighteousness in all manner of sins. For before he turned away from righteousness, being occupied with righteous deeds he was not of a bad nature, for a bad nature could not be in righteousness, since a bad tree—that is wickedness—cannot produce good fruits,—the fruits that spring from virtue. ”

“ For it is not the nature in us which is the cause of the evil, but it is the voluntary choice which worketh evil; and so our nature is not the cause of righteousness, as if it were incapable of admitting unrighteousness, but it is the principle which we have admitted that makes men righteous ”

“ Let those who, from the parable of the drag-net, introduce the doctrine of different natures, tell us in regard to the wicked man who afterwards turned aside from all the wickednesses which he committed and keeps all the commandments of God, and does that which is righteous and merciful, of what nature was he when he was wicked? ”