For, "All flesh is like grass, And all of man's glory like the flower in the grass. The grass withers, and its flower falls;

 (iii) The Christian is chosen for obedience and for sprinkling by the blood of Jesus Christ. In the Old Testament there are three occasions when sprinkling with blood is mentioned. It may well be that all three were present in Peter's mind and that all three have something to contribute to the thought behind these words. 