פּירוש אויף תהילים 145:16

and satisfy every living thing [with] its desire With a sufficiency to sustain him, He satisfies his goodness, his will, and his blessing. desire Heb. רצון, apayement in Old French, propitiation.

Thou openest (פותח): This means that You give them their food abundantly, so that they are satisfied, each according to its desire.

"Open" - and the "you" that's written in the prior verse (Psalm 145:15) is also here, thus [the verse should read] "and You open Your hand," and thus: because the God of my father is my help.