I will praise the name of God with a song, and will magnify him with thanksgiving.
-He resolves because of the anticipation of glorification (Psalms 69:29), to praise God, and hopes that his deliverance will cause gladness to the humble saints.
Verse 31. This also shall please the Lord better than an ox (or) bullock that hath horns and hoofs - i:e., having divided hoofs, the mark of clean animals (Leviticus 11:3-4). 'Better than any victim, however perfect.' Mere material offerings cannot please God, who is a Spirit, in themselves, but only in so far as they are expressions of sincere faith and love.
Verse 32. The humble shall see (this), and be glad - i:e., shall see God's deliverance of One afflicted still more severely than themselves, and so shall joyfully anticipate their own.
And your heart shall live that seek God - (Psalms 22:26, note.) Grief "wounds" and deadens, the heart (Psalms 109:22); joy "revives the spirit" (Genesis 45:27).
Verse 33. For the Lord heareth ... and despiseth not his prisoners - i:e., those in the bonds of trial for His sake (Psalms 69:7) or by His appointment (Psalms 69:26); cf. Ps. 21:24 , "for," as my case shows.