Man’s Fragility and God’s Mercy

Psa 103:15  As for man, his days are as grass: as a flower of the field, so he flourisheth.
Psa 103:16  For the wind passeth over it, and it is gone; and the place thereof shall know it no more.
Psa 103:17  But the mercy of the LORD is from everlasting to everlasting upon them that fear him, and his righteousness unto children’s children;
Psa 103:18  To such as keep his covenant, and to those that remember his commandments to do them.