As for man, his days are as grass. Here is a new departure. From the loving kindness and mercy of God the psalmist passes to the weakness and helplessness of man. Man is like grass (Psalms 37:2; Psalms 90:5, Psalms 90:6; Psalms 102:11; Isaiah 40:6-8, etc.
). His days fleet and fade. He never "continueth in one stay." As a flower of the field (comp. Job 14:2; Isaiah 28:1; Isaiah 40:6; James 1:10; 1 Peter 1:24, etc.). He flourisheth; i.e. he cometh up in full vigour, glorious to look upon, rejoicing in his youth and strength, but within a little time he fadeth, falleth away, or is "cut down, dried up, and withered."
There is no strength or stability in him.