Here is, 1. David's experience of a good work God had wrought in him, which he takes the comfort of and pleads with God: "I have sought thee, sought to thee as my oracle, sought after thee as my happiness, sought thee as my God; for should not a people seek unto their God? If I have not yet found thee, I have sought thee, and thou never saidst, Seek in vain, nor wilt say so to me, for I have sought thee with my heart, with my whole heart, sought thee only, sought thee diligently." 2. His prayer for the preservation of that work: "Thou that hast inclined me to seek thy precepts, never suffer me to wander from them." The best are sensible of their aptness to wander; and the more we have found of the pleasure there is in keeping God's commandments the more afraid we shall be of wandering from them and the more earnest we shall be in prayer to God for his grace to prevent our wanderings.

Thy word have I hid in mine heart,.... Not only heard and read it, but received it into his affections; mixed it with faith, laid it up in his mind and memory for future use; preserved it in his heart as a choice treasure, where it might dwell richly, and be of service to him on many occasions; and particularly be of the following use:

that I might not sin against thee; the word of God is a most powerful antidote against sin, when it has a place in the heart; not only the precepts of it forbid sin, but the promises of it influence and engage to purity of heart and life, and to the perfecting of holiness in the fear of the Lord; and all the doctrines of grace in it effectually teach the saints to deny all sin and worldly lusts, and to live a holy life and conversation; see Co2 7:1.