17 If you address as Father the One who impartially judges according to each one’s work, conduct yourselves in fear during the time of your stay on earth; 18 knowing that you were not redeemed with perishable things like silver or gold from your futile way of life inherited from your forefathers, 19 but with precious blood, as of a lamb unblemished and spotless, the blood of Christ. 20 For He was foreknown before the foundation of the world, but has appeared in these last times for the sake of you 21 who through Him are believers in God, who raised Him from the dead and gave Him glory, so that your faith and hope are in God.
22 Since you have purified your souls in obedience to the truth for a sincere love of the brothers and sisters, fervently love one another from the heart, 23 for you have been born again not of seed which is perishable, but imperishable, that is, through the living and enduring word of God. 24 For,
“All flesh is like grass,
And all its glory is like the flower of grass.
The grass withers,
And the flower falls off,
25 But the word of the Lord endures forever.”
And this is the word which was preached to you. NASB
Isaiah 40:7-9 7The grass withers, the flower fades, When the breath of the Lord blows upon it; The people are indeed grass!
8 The grass withers, the flower fades, But the word of our God stands forever.
9 Go up on a high mountain, Zion, messenger of good news, Raise your voice forcefully, Jerusalem, messenger of good news; Raise it up, do not fear. Say to the cities of Judah, “Here is your God!” NASB