To the end that my glory may sing praise to thee, and not be silent. O LORD my God, I will give thanks unto thee for ever. To the end that my glory may sing - The word כבוד cabod, which we here translate glory, is sometimes taken to signify the liver. Here it is supposed to mean the tongue; why not the heart? But does not David mean, by his glory, the state of exaltation and honor to which God had raised him, and in which he had before too much trusted; forgetting that he held it in a state of dependence on God? Now he was disciplined into a better sentiment. My glory before had sung praise to myself; in it I had rested; on it I had presumed; and intoxicated with my success, I sent Joab to number the people. Now my glory shall be employed for another purpose; it shall give thanks to God, and never be silent. I shall confess to all the world that all the good, the greatness, the honor, the wealth, prosperity, and excellence I possess, came from God alone, and that I hold them on his mere good pleasure. It is so; therefore, "O Lord my God, I will give thanks unto thee for ever."
The old Psalter translates and paraphrases the last verse thus: - That my joy syng til the, and I be noght stanged: Lord my God withouten ende I sal schryf til the. The dede and the sorrow of oure syn God turnes in til joy of remission; and scheres oway oure sekk-(drives away our distress) and umgyfs (surrounds) qwen we dye, with gladness. That oure joy syng til hym, that has gyfen us that joy; for we be "no more stanged" (stung) with conscience of syn: na drede of dede or of dome; bot withouten ende we sal loue (praise) him. Na tunge may telle na herte may thynk the mykelnes of joy that es in louing (praising) of hym in gast, and in sothfastnes," i.e., spirit and truth.
Commentary on the Bible, by Adam Clarke [1831].