Psalm 32:1-11

1 Blessed is he whose transgression is forgiven, whose sin is covered. 2 Blessed is the man unto whom the Lord imputeth not iniquity, and in whose spirit there is no guile. 3 When I kept silence, my bones waxed old through my roaring all the day long. 4 For day and night thy hand was heavy upon me: my moisture is turned into the drought of summer. Selah. 5 I acknowledged my sin unto thee, and mine iniquity have I not hid. I said, I will confess my transgressions unto the Lord; and thou forgavest the iniquity of my sin. Selah. 6 For this shall every one that is godly pray unto thee in a time when thou mayest be found: surely in the floods of great waters they shall not come nigh unto him.7 Thou art my hiding place; thou shalt preserve me from trouble; thou shalt compass me about with songs of deliverance. Selah. 8 I will instruct thee and teach thee in the way which thou shalt go: I will guide thee with mine eye. 9 Be ye not as the horse, or as the mule, which have no understanding: whose mouth must be held in with bit and bridle, lest they come near unto thee. 10 Many sorrows shall be to the wicked: but he that trusteth in the Lord, mercy shall compass him about. 11 Be glad in the Lord, and rejoice, ye righteous: and shout for joy, all ye that are upright in heart.
Proverbs28:13
He that covereth his sins shall not prosper: but whoso confesseth and forsaketh them shall have mercy.