Psalms 119:102

I have not departed from thy judgments
From the precepts of the word, from the ways and worship and ordinances of God; he had not wickedly and on purpose departed from them; whenever he did, it was through inadvertency, the weakness of the flesh, and strength of temptation; nor from the doctrines of the word, which he held fast, knowing of whom he had learned them, as follows:

for thou hast taught me;
the nature, excellency, and use of these judgments; he had taught him, by his Spirit, experimentally to understand the doctrines of the word, and practically to observe the precepts of it; and this preserved him from an apostasy from either of them.