Do not fret because of evildoers, nor be envious of the workers of iniquity. For they shall soon be cut down like the grass, and wither as the green herb.
In this world under Satan’s sway, things do not always work as they should. Sometimes it seems the wicked prosper while the righteous face troubles. But God offers us the long view. From His perspective, the passing success of evildoers is fleeting. Those who do good will win in the end.
David repeats this theme several times in Psalm 37. Verses 14-15 add: “The wicked have drawn the sword and have bent their bow, to cast down the poor and needy, to slay those who are of upright conduct. Their sword shall enter their own heart, and their bows shall be broken.” God is a God of ultimate justice—you could even say poetic justice.