David had often expressed the great love he had to God; here he expresses the great love he had to the people of God; and observe, 1. Why he loved them; not so much because they were his best friends, most firm to his interest and most forward to serve him, but because they were such as feared God and kept his precepts, and so did him honour and helped to support his kingdom among men. Our love to the saints is then sincere when we love them for the sake of what we see of God in them and the service they do to him. 2. How he showed his love to them: He was a companion of them. He had not only a spiritual communion with them in the same faith and hope, but he joined with them in holy ordinances in the courts of the Lord, where rich and poor, prince and peasant, meet together. He sympathized with them in their joys and sorrows (Heb 10:33); he conversed familiarly with them, communicated his experiences to them, and consulted theirs. He not only took such to be his companions as did fear God, but he vouchsafed himself to be a companion with all, with any, that did so, wherever he met with them. Though he was a king, he would associate with the poorest of his subjects that feared God, Psa 15:4 : Jam 2:1.

Teach me good judgment and knowledge,.... Or, "a good taste" (p): of the Lord himself, how good and gracious he is; of his grace and love, which is better than wine; of his word and the truths of it, which are sweeter to a spiritual taste than honey or the honeycomb; and of the things of the Spirit of God, which are seventy to a spiritual man, a distinguishing taste of things; for as "the taste discerns perverse things" in food, so a man of a spiritual taste distinguishes good from evil, truth from error; discerns things that differ, and approves of those that are most excellent, and abides by them. Or, "a good sense" (q), as it may be rendered; a good sense of the Scriptures, the true and right sense of them; and to have the mind of God and of Christ, and of the Spirit of Christ, in the word; and to have distinguishing light in it, and a well established judgment in the truths of it, is very desirable: as is also a spiritual and experimental "knowledge" of them, a growing and increasing one; a knowledge of God in Christ, and of his will; a knowledge of Christ, his person and offices, and the mysteries of his grace; which a truly gracious and humble soul desires to be taught, and is taught of God more or less;

for I have believed thy commandments; the whole word of God, and all that is said in it; that it is of God, is the word of God and not the word of man; and therefore he was desirous of being taught the true meaning of it, and to be experimentally acquainted with it; the word of God is called his commandment, Psa 19:7. Or the precepts of the word; he believed these were the commandments of God, and not of men; delivered out by him, and enforced by his authority; and therefore he gave credit to them, and loved them, and desired better to understand and do them: or the promises and threatenings annexed to them, which he believed would be punctually fulfilled upon the doers or transgressors of them; and as for himself, he cheerfully yielded the obedience of faith unto them.

(p) "bonitatem gustus", Piscator, Michaelis. (q) "Bonitatem sensus", Montanus; i.e. "sensum bonum", Gejerus.