Augustine of Hippo

"All shall hear His voice, and shall come forth." And where is judgment, if all shall hear and all shall come forth? It is as if all were confusion; I see no distinguishing. Certainly Thou hast received authority to judge, because Thou art the Son of man: behold, Thou wilt be present in the judgment; the bodies will rise again; but tell us something of the judgment itself, that is, of the separation of the evil and the good. …

Tractates on John 19 ↗

Jerome

And these shall go into eternal punishment, but the righteous into eternal life. Wise reader, take note that both eternal punishments and perpetual life should no longer have fear of ruin.

Commentary on Matthew ↗

Gregory the Dialogist

If he who has not given to others is visited with so heavy a punishment, what shall he get who is convicted of having robbed others of their own. (Mor. xxxiv. 19.) They say that He held out empty terrors to deter them from sin. We answer, if He threatened falsely to check unrighteousness, then He promised falsely to promote good conduct. Thus while they go out of the way to prove God merciful, they are not afraid to charge Him with fraud. …

Catena Aurea by Aquinas ↗