Vs. 171 — My lips shall utter praise, For You teach me Your statutes.

John Stephen:

You have stood at the fountain head of a stream of water, and admired while it bubbled up, and ran down in a clear rivulet, till at length it swelled the mighty river. Such is the allusion here. The heart taught of God cannot contain itself, but breaks out in praise and singing. This would be the effect of divine illumination, and this would be felt to be a privilege, yea, and a high duty. Have you not found so, believers, specially on communion occasions? Be assured, such utterances are the sign of a renewed heart; yea, of a heart filled with all gratitude of right feeling. (Spurgeon, C. H. (2009). The treasury of David: Psalms 111-119 (Vol. 5, pp. 437–438). Bellingham, WA: Logos Bible Software.)

Prayer:

My lips shall utter praise, for You teach me Your statutes. The more You teach me, the more I have rejoice in You. The more You open my eyes into Thy precepts and testimonies, the more praise that is stirred up with and seeks to erupt from my lips. Do not withhold the treasures of Thy word. More, teach me more, that I may know Thee more in Thy loveliness.