Who can understand his errors? cleanse you me from secret faults. Keep back your servant also from presumptuous sins; let them not have dominion over me: then shall I be upright, and I shall be innocent from the great transgression. Let the words of my mouth, and the meditation of my heart, be acceptable in your sight, O LORD, my strength, and my redeemer.
These verses, this picture says all that needs to be said about the power of prayer. And to whom we need to be praying to.