Charles Ellicott Commentary Psalms 37:2

"For they shall soon be cut down like the grass, And wither as the green herb." — Psalms 37:2 (ASV)

For they ... — This inevitable metaphor for the brevity of human life, made even more compelling in an Eastern region where vegetation is so rapid both in growth and decay, and generally applied in the Bible, without distinction of good or bad, with a mournful sigh over human weakness, becomes here a source of comfort to the godly man.

Green herb. — Literally, greenness of herbage.