John Gill Commentary Psalms 119:102

"I have not turned aside from thine ordinances; For thou hast taught me." — Psalms 119:102 (ASV)

I have not departed from your 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.

for you have 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.