Charles H. Spurgeon on Psalms 109:1

The God of MY praise. Give me leave, in order to expound it the better, to expostulate. What, David, were there no saints but thyself that gave praise to God? Why dost thou then seem to appropriate and engross God unto thyself, as the God of thy praise, as if none praised him else but thee? It is because his soul had devoted all the praise he was able to bestow on any, unto the Lord alone; as whom he had set himself to praise, and praise alone. As of a beloved son we use to say, "the son of my love." And further, it is as if he had said, If I had all the ability of all the spirits of men and angels wherewith to celebrate him, I would bestow them all on him, he is the God of my praise. And as he was David's, so he should be ours. —Thomas Goodwin.