Adam Clarke on Psalms 119:10

With my whole heart have I sought thee -

4. He must seek God, make earnest prayer and supplication to him for Divine light, for a tender conscience, and for strength to walk uprightly.

5. His whole heart; all his affections must be engaged here, or he cannot succeed. If he keep any affection for the idol or abomination; if his heart do not give it before the Lord, he may make many prayers, but God will answer none of them.

6. He must take care to keep in the path of duty, of abstinence and self-denial; not permitting either his eye, his hand, or his heart to wander from the commandments of his Maker.