Commentaries:
Barnes' Notes
Praise ye the Lord - Margin, "Hallelujah." See Psalms 106:1.
I will praise the Lord with my whole heart - With undivided affections; holding back nothing. I will allow nothing to be in my heart that would interfere with the fullness of praise; no coldness or dividedness of affection; no love for other things that would deaden my love for God; no suspicion respecting him that would chill my ardor; no unbelief that would drag me down to earth, while the language of my lips ascended to God. See the notes at Psalms 86:12.
In the assembly of the upright - With the righteous when they are gathered together for public worship.
And in the congregation - See Psalms 22:22, Psalms 22:25; Psalms 66:13; Psalms 89:5.
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