Vs. 68 — You are good, and do good; Teach me Your statutes.

John Calvin:

He beseeches God to exercise his goodness towards him, not by causing him to increase in riches and honours, or to abound in pleasures, but by enabling him to make progress in the knowledge of the law. It is usual for almost all mankind to implore the exercise of God’s goodness towards them, and to desire that he would deal bountifully with them, in the way of gratifying the diversity of the desires into which they are severally hurried by the inclinations of the flesh; but David protests that he would be completely satisfied, provided he experienced God to be liberal towards him in this one particular, which almost all men pass over with disdain.

Charles H. Spurgeon:

Even in affliction God is good, and does good. This is the confession of experience. God is essential goodness in himself, and in every attribute of his nature he is good in the fullest sense of the term; indeed, he has a monopoly of goodness, for there is none good but one, that is God. His acts are according to his nature: from a pure source flow pure streams. God is not latent and inactive goodness; he displays himself by his doings, he is actively beneficent, he does good. How much good he does no tongue can tell! How good he is no heart can conceive! It is well to worship the Lord as the poet here does by describing him. Facts about God are the best praise of God. All the glory we can give to God is to reflect his own glory upon himself. We can say no more good of God than God is and does, We believe in his goodness, and so honour him by our faith; we admire that goodness, and so glorify him by our love; we declare that goodness, and so magnify him by our testimony. (Spurgeon, C. H. (2009). The treasury of David: Psalms 111-119 (Vol. 5, p. 272). Bellingham, WA: Logos Bible Software.)

Prayer:

You, O’ God, are good, and do good; teach me Your statutes. You have shown me that You are good in nature, character–yes, in all Your attributes. Therefore You are good, perfectly good, in all that You do. Such peace and comfort this brings. I will not be anxious in any of Your dealings because You are good and do good. This I cry out: teach me more about You. I want to delight in Your goodness. I will delight in Your goodness.