1 Peter 1:22-25

Purifying your souls in the obedience of charity, with a brotherly love, from a sincere heart love one another earnestly: Being born again not of corruptible seed, but incorruptible, by the word of God who liveth and remaineth for ever. For all flesh is as grass; and all the glory thereof as the flower of grass. The grass is withered, and the flower thereof is fallen away. But the word of the Lord endureth for ever. And this is the word which by the gospel hath been preached unto you.