Psalms 103:14

"For he knoweth our frame; he remembereth that we are dust."
Psalms 103:14 (KJV)

Context from Psalms 103

12

As far as the east is from the west, so far hath he removed our transgressions from us.

13

Like as a father pitieth his children, so the LORD pitieth them that fear him.

14

For he knoweth our frame; he remembereth that we are dust.

15

As for man, his days are as grass: as a flower of the field, so he flourisheth.

16

For the wind passeth over it, and it is gone; and the place thereof shall know it no more.