1 Peter 1:22-25 NKJV
[22] Since you have purified your souls in obeying the truth through the Spirit in sincere love of the brethren, love one another fervently with a pure heart, [23] having been born again, not of corruptible seed but incorruptible, through the word of God which lives and abides forever, [24] because "All flesh is as grass, And all the glory of man as the flower of the grass. The grass withers, And its flower falls away, [25] But the word of the LORD endures forever." Now this is the word which by the gospel was preached to you.