Psalms 19: 8, 10, 12 - 14
8 the precepts of the LORD are right, rejoicing the heart; the commandment of the LORD is pure, enlightening the eyes;
10 More to be desired are they than gold, even much fine gold; sweeter also than honey and drippings of the honeycomb.
12 But who can discern his errors? Clear thou me from hidden faults.
13 Keep back thy servant also from presumptuous sins; let them not have dominion over me! Then I shall be blameless, and innocent of great transgression.
14 Let the words of my mouth and the meditation of my heart be acceptable in thy sight, O LORD, my rock and my redeemer.

EWTN