John Gills Exposition of the Bible Commentary - Psalms 33:21
For our heart shall rejoice in him ,.... Not in sin, nor in themselves and in their boastings, all such rejoicing is evil; but in the Lord, "in his Word"; as the Targum is, in the essential Word of God, Christ Jesus; in his person, righteousness, and salvation; and this joy is heart joy, inward joy, real joy, joy in the Holy Ghost; and is unspeakable and full of glory. This is what the psalmist calls upon the saints to do, in the beginning of the psalm; and so his end in composing it is... read more
Matthew Henry's Complete Commentary - Psalms 33:12-22
We are here taught to give to God the glory, I. Of his common providence towards all the children of men. Though he has endued man with understanding and freedom of will, yet he reserves to himself the government of him, and even of those very faculties by which he is qualified to govern himself. 1. The children of men are all under his eye, even their hearts are so; and all the motions and operations of their souls, which none know but they themselves, he knows better than they themselves,... read more