Psalm 103:15
"As for man, his days are as grass: as a flower of the field, so he flourisheth."
Cross References (ranked by relevance)
For all flesh is as grass, and all the glory of man as the flower of grass. The grass withereth, and the flower thereof falleth away:
I, even I, am he that comforteth you: who art thou, that thou shouldest be afraid of a man that shall die, and of the son of man which shall be made as grass;
Woe to the crown of pride, to the drunkards of Ephraim, whose glorious beauty is a fading flower, which are on the head of the fat valleys of them that are overcome with wine!
And the glorious beauty, which is on the head of the fat valley, shall be a fading flower, and as the hasty fruit before the summer; which when he that looketh upon it seeth, while it is yet in his hand he eateth it up.
He rebuketh the sea, and maketh it dry, and drieth up all the rivers: Bashan languisheth, and Carmel, and the flower of Lebanon languisheth.