Augustine of Hippo

"But the transgressors shall be destroyed in the self-same thing" (ver. 38). What is meant by, "in the self-same thing"? It means for ever: or all together in one and the same destruction. "The remainder of the wicked shall be cut off." Now there is "(a remainder) for the man that maketh peace:" they therefore who are not peace-makers, are ungodly. For, "Blessed are the peace-makers: for they shall be called the children of God."

ON THE PSALMS - Psalm 37 ↗

Ambrose of Milan

But the unjust will perish together; the remnants of the wicked will be destroyed. The remnants of the righteous are virtues; the remnants of the wicked are wickedness and the sin of treachery. They will be wiped away, so that they will not exist.

Commentaries on the Twelve Davidic Psalms ↗

Thomas Aquinas

Next he sets forth the condemnation of the wicked. The wicked have two things. First, they themselves perish; second, they leave nothing behind them. Therefore he says, "But the unjust will perish." Job 4: "Because no one understands, they will perish forever." "And together the remnants of the wicked will be destroyed." 1 Cor. 2: "Which will perish with them in Gehenna." Or "remnants," that is, all that they had -- namely, riches that perish, fame that rots, offspring that will perish. …

Exposition on the Psalms of David ↗