Ps 33:1-22. A call to lively and joyous praise to God for His glorious attributes and works, as displayed in creation, and His general and special providence, in view of which, the Psalmist, for all the pious, professes trust and joy and invokes God's mercy.
4-9. Reasons for praise: first, God's truth, faithfulness, and mercy, generally; then, His creative power which all must honor.
6. In "word" and "breath"--or, "spirit," there may be an allusion to the Son (Joh 1:1) and Holy Spirit.
9. he spake--literally, "said."
it was--The addition of "done" weakens the sense (compare Ge 1:3-10).
10, 11. In God's providence He thwarts men's purposes and executes
12-19. The inference from the foregoing in Ps 33:12 is illustrated by God's special providence, underlying which is His minute knowledge of all men.
15. fashioneth--or, "forms," and hence knows and controls
considereth--or, "understands"; God knows men's motives.
16, 17. Men's usual reliances in their greatest exigencies are, in themselves, useless.
18, 19. Contrasted is God's guidance and power to save from the greatest earthly evil and its most painful precursor, and hence from all.
20-22. waiteth--in earnest expectation.