Turn away from evil and do good, so that you will abide forever.
The faithful see the world in chaos: the godless prosper while the pious suffer, which tempts us to think God either absent or indifferent. This psalm strengthens us against that very temptation by declaring their felicity cursed and fleeting, while God's care for His own never fails, even in calamity.
AI summary
Commenting on Psalm 37:1-40
Here we have the seventh precept, which takes a negative and positive form, and is the quintessence of the entire Psalm
Commenting on Psalm 37:27
Depart from evil, and do good. We must not envy the doers of evil, but depart altogether from their spirit and example. As Lot left Sodom without casting a look behind, so must we leave sin. No truce or parley is to be held with sin, we must turn away from it without hesitation, and set ourselves practically to work in the opposite direction.