In Psalm 19 David is writing about how great God is, and this His creation sings to Him, even though it has no voice or words. He describes how powerful and beautiful the teachings and truth of God are to people who are willing to listen and do what they hear. Then, in verses 12-14, he closes with a prayer:
“But who can discern their own errors?
Forgive my hidden faults,
Keep your servant also from willful sins;
May they not rule over me.
Then I will be blameless,
Innocent of great transgression.
May these words of my mouth and this meditation of my heart be pleasing in Your sight,
Lord, my Rock and my Redeemer.
This is my prayer for me, and for you, today. Forgive what is hidden in us, give us the strength to say no to the things we face, and strip them of their power to control us. God, may it be like this for us today.