Isaiah 40:6-8 KJV

⁶ The voice said, Cry. And he said, What shall I cry? All flesh is grass, and all the goodliness thereof is as the flower of the field:

⁷ The grass withereth, the flower fadeth: because the spirit of the Lord bloweth upon it: surely the people is grass.

⁸ The grass withereth, the flower fadeth: but the word of our God shall stand for ever.