Teach me good judgment - The word here rendered "judgment" means, properly, "taste," that power by which we determine the quality of things as sweet, bitter, sour, etc. Then it is applied to the mind or understanding, as that by which we determine the moral quality of things, or decide what is right or wrong; wise or foolish; good or evil. Here it means that he desired to have in full exercise the faculty of appreciating what is right, and of distinguishing it from what is wrong.

And knowledge - Knowledge of the truth; knowledge of thy will; knowledge of duty.

For I have believed thy commandments - I have confided in thy commandments. He believed that such a keeping of the law of God would be connected with a correct view of things. The keeping of the commands of God is one of the best means of growing in true knowledge, and of cultivating the understanding; of promoting a just taste or perception of what is true, and of developing the powers of the soul in the best proportions. Compare John 7:17.

Teach me good judgment and knowledge - טוב טעם ודעי למדני tob taam vedaath lammnedeni. Teach me (to have) a good taste and discernment. Let me see and know the importance of Divine things, and give me a relish for them.

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, Psalm 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.

Teach me good judgment and knowledge: for I have believed thy commandments.

119:66 Judgment - Whereby I may rightly discern between truth and falsehood. Knowledge - A spiritual experimental knowledge.

66. Teach me good judgment and knowledge-namely, in Thy word (so as to fathom its deep spirituality); for the corresponding expression (Ps 119:12, 64, 68), is, "Teach me Thy statutes."

119:65-72 However God has dealt with us, he has dealt with us better than we deserve; and all in love, and for our good. Many have knowledge, but little judgment; those who have both, are fortified against the snares of Satan, and furnished for the service of God. We are most apt to wander from God, when we are easy in the world. We should leave our concerns to the disposal of God, seeing we know not what is good for us. Lord, thou art our bountiful Benefactor; incline our hearts to faith and obedience. The psalmist will go on in his duty with constancy and resolution. The proud are full of the world, and its wealth and pleasures; these make them senseless, secure, and stupid. God visits his people with affliction, that they may learn his statutes. Not only God's promises, but even his law, his percepts, though hard to ungodly men, are desirable, and profitable, because they lead us with safety and delight unto eternal life.