Psalms 103:2

“Bless the Lord, O my soul, etc.] Which is repeated to show the importance of the service, and the vehement desire of the psalmist, that his soul should be engaged in it: and forget not all his benefits; not any of them; the least of them are not to be forgotten, being such as men are altogether unworthy of; they flow not from the merit of men, but from the mercy of God; and they are many, even innumerable; they are new every morning, and continue all the day; and how great must the sum of them be, and not one should be forgotten; and yet even good men are very apt to forget them; as the Israelites of old, who sung the praises of the Lord, and soon forgot his works: the Lord, knowing the…”

“Bless the Lord, O my soul - The repetition here denotes the intensity or earnestness of the wish or desire of the psalmist. It is an emphatic calling upon his soul, that is, himself, never to forget the many favors which God was continually conferring upon him. And forget not all his benefits - Any of his favors. This refers not to those favors in the aggregate, but it is a call to remember them in particular. The word rendered “benefits” - גמול gemûl - means properly an act, work, doing, whether good or evil, Psalms 137:8; and then, “desert,” or what a man deserves “for” his act; “recompence.” It is rendered “deserving” in Judges 9:16; benefit, as here, in 2 Chronicles 32:25; “desert,”…”

“forget not: Psa 105:5, Psa 106:7, Psa 106:21, Psa 116:12; Deu 8:2-4, Deu 8:10-14, Deu 32:6, Deu 32:18; Ch2 32:25; Isa 63:1, Isa 63:7; Jer 2:31, Jer 2:32; Luk 17:15-18; Eph 2:11-13 Psalms 103:3”