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.
Conclusion.
(My) glory may sing ... So the Septuagint, as the English version, understand "my" to "glory" - i:e., 'my tongue.' (cf. Psalms 16:9, note). I think "glory" is all that is glorious in me and in thy saints. David had called on the 'saints of the Lord' to "sing unto the Lord" (Psalms 30:4). Here he resumes the thought, and by putting "glory" absolutely, implies that the soul and tongue, not of himself only, but also of the saints, should glorify God by singing unto Him. As in Psalms 30:9 David had made it his plea for deliverance, that if not saved from the pit, he could not praise the Lord, so now he makes the praise of the Lord to be the object of the deliverance by this time granted to him.