Verse 24— For all flesh is as grass. To make the declaration that God's word is living and eternal to stand out with more boldness, the apostle presents by the way of contrast, a quotation from the prophet Isaiah 40:6-8. Everything pertaining to man is weak like the grass, and his highest earthly glory like the flower of the grass. The grass withers and the flower falls. So man in his best estate, with all his earthly achievements, quickly decays. He is soon gone. James uses to some extent the same illustration. (James 1:11.)