The psalm begins with a hallelujah and an exhortation to himself: praise the Lord, O my soul. He vows to praise him all his life and sing praises to him as long as he exists. It is a personal vow that lasts as long as his breath.
Verses 3 and 4 contain a warning: do not put your trust in princes, in a son of man, in whom there is no salvation. When his breath departs, he returns to the earth, and on that very day his plans perish. The powerful are frail. In contrast, verse 5 declares blessed the one whose help is the God of Jacob, whose hope is in the Lord his God.
Verses 6 to 9 describe that God: he made heaven, earth, the sea and all that is in them, and keeps faith forever. He executes justice for the oppressed, gives food to the hungry, sets the prisoners free, opens the eyes of the blind, lifts up those who are bowed down, loves the righteous, watches over the sojourners and upholds the fatherless and the widow, but the way of the wicked he brings to ruin. Verse 10 ends with a proclamation: the Lord will reign forever, your God, O Zion, to all generations. Hallelujah.