"Teach me, O Lord, the way of Your statutes, etc." Solomon said in Proverbs 3:13 "Happy is the man who finds wisdom, and the man who gains understanding," and in verse 14 "For her [wisdom's] profit is better than the profit of silver, and her gain than fine gold." In verse 15 he says "She is more precious than rubies, and all the things you may desire cannot compare with her." There were three who asked for wisdom from the Holy One, blessed be He: David, Solomon, and the Messiah.
David said, "Teach me, O Lord, the way of Your statutes." Solomon said in 2 Chronicles 1:10 "Give me now wisdom and knowledge." The Holy One, blessed be He, said to him in verse 12, "Wisdom and knowledge are granted to you." Concerning the Messiah, it says in Psalm 72:1, "Give the king Your judgments, O God."
Therefore, it says "Teach me, O Lord, the way of Your statutes." What does "teach me" mean? David said, "Do not say to me that they are in front of you [i.e. easily accessible]. Rather, you should teach me," as it says in Psalm 119:73, "Give me understanding, and I shall keep Your law; indeed, I shall observe it with my whole heart."
Therefore, it says "Teach me, O Lord, the way of Your statutes." What is "the way"? It means "make it [the Torah] for me a way." "And I shall treasure it [the Torah] with my whole heart."
What is "treasure it with my whole heart"? It means that the Torah should be in his hands like a person who is occupied with Torah all his days, and he puts it aside as if he has not occupied himself with it. And so it is with everything. Why is this compared to one who makes a vessel for the king and brings it to him, and it breaks in his hand, as if he has not made it at all?
Similarly, a person who is engaged in Torah all his days, and then puts it aside, should be concerned that he has engaged in Torah and then put it aside. And so it was with Ahithophel. What did he benefit? Rather, David said, "Teach me, O Lord, the way of Your statutes, and I shall treasure it with my whole heart."
And so it says in Psalm 19:11-12, "Moreover by them Your servant is warned, and in keeping them there is great reward. Who can understand his errors? Cleanse me from secret faults." And it says in Psalm 119:165, "Great peace have those who love Your law, and nothing causes them to stumble."