John Chrysostom

Now then is it not strange that, whilst others do not even now despair of thy salvation, but are continually praying that they may have their member restored to them, thou thyself, having once fallen, art unwilling to get up again, and remainest prostrate, all but crying aloud to the enemy: "Slay me, smite me, spare not?" "Does he who falls not rise up again?" speaks the divine oracle. …

Letter To The Fallen Theodore 2:4 ↗

Ignatius of Antioch

And pray ye without ceasing in behalf of other men; for there is hope of the repentance, that they may attain to God. For "cannot he that falls arise again, and he that goes astray return?" Permit them, then, to be instructed by you. Be ye therefore the ministers of God, and the mouth of Christ. For thus saith the Lord, "If ye take forth the precious from the vile, ye shall be as my mouth." Be ye humble in response to their wrath; oppose to their blasphemies your earnest prayers; while they go astray, stand ye stedfast in the faith. …

Epistle of Ignatius to the Ephesians ↗

Jerome

And you shall say to them: Thus says the Lord: Shall the one who falls not rise up again? And the one who turns away not return? After so many evils, it provokes those who were able to remain to repentance. Before the things that were threatened come, it exhorts to conversion, and gives place to repentance. …

Commentary on Jeremiah ↗

Pacian of Barcelona

Behold! I promise, I engage, if ye return to your Father with true satisfaction, erring no more, adding nothing to former sins, saying also some humble and mournful words, as, Father, we have sinned before Thee, and are no more worthy to be called Thy sons; straightway shall leave you both that filthy herd, and the unseemly food of husks. Straightway on your return shall the robe be put upon you, and the ring adorn you, and your Father's embrace again receive you. Lo! …

On Penitents 12:2 ↗