Commentaries:
Jamieson, Fausset, and Brown
Spiritual are better than mere material offerings (Psalms 40:6; Psalms 50:8); hence a promise of the former, and rather contemptuous terms are used of the latter.
Other Jamieson, Fausset, and Brown entries containing Psalms 69:31:
Matthew 5:3
Hebrews 13:15
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