Verses 1 to 3 begin with David's vow: I will extol you, my God and King, and bless your name forever and ever, every day. Great is the Lord and greatly to be praised, and his greatness is unsearchable. Verses 4 to 7 speak of passing it on: one generation shall commend your works to another; they will speak of the glorious splendor of his majesty, his wondrous works, his mighty deeds and his abundant goodness.
Verse 8 is the heart of the psalm and takes up a very old confession of Israel: the Lord is gracious and merciful, slow to anger and abounding in steadfast love. Verses 9 and 10 widen the view: he is good to all, and his mercy is over all that he has made. All his works shall give thanks to him and his saints shall bless him. Verses 11 to 13 speak of his kingdom: the glory of his kingdom and his power will be made known to the children of man, for his kingdom is an everlasting kingdom and his dominion endures throughout all generations.
Verses 14 to 16 describe his care: he upholds all who are falling and raises up all who are bowed down; the eyes of all look to him, and he gives them their food in due time, opens his hand and satisfies the desire of every living thing. Verses 17 to 20 describe him as righteous and kind, near to all who call on him in truth, fulfilling the desire of those who fear him, hearing their cry and saving them, preserving all who love him and destroying the wicked. Verse 21 closes with the psalmist's purpose: my mouth will speak the praise of the Lord, and let all flesh bless his holy name forever and ever.