C.H. Spurgeons's The Treasury of David
Here is the final vow of praise.
Verse 24. My tongue also shall talk of thy righteousness all the day long. I will talk to myself, and to thee, my God, and to my fellow men: my theme shall be thy way of justifying sinners, the glorious display of thy righteousness and grace in thy dear Son; and this most fresh and never to be exhausted subject shall be ever with me, from the rising of the sun to the going down of the same. Others talk of their beloveds, and they shall be made to hear of mine. I will become an incessant talker, while this matter lies on my heart, for in all company this subject will be in season.
For they are confounded, for they are brought unto shame, that seek my hurt. As in many other Psalms, the concluding stanzas speak of that as an accomplished fact, which was only requested in former verses. Faith believes that she has her request, and she has it. She is the substance of things hoped for -- a substance so real and tangible, that it sets the glad soul singing. Already sin, Satan, and the world are vanquished, and the victory is ours.
"Sin, Satan, Death appear
To harass and appal:
Yet since the gracious Lord is near,
Backward they go, and fall."
"We meet them face to face,
Through Jesus' conquest blest;
March in the triumph of his grace,
Right onward to our rest."
EXPLANATORY NOTES AND QUAINT SAYINGS
HINTS FOR PASTORS AND LAYPERSONS
Verse 24. How to make familiar talk edifying and useful.