Have mercy upon me, O God, according to Thy Lovingkindness: according unto the multitude of Thy tender mercies blot out my transgressions LORD that I may be graced to stand before You, Amen.
LORD, I pray that You wash me throughly from mine iniquity, and cleanse me from my sin, Amen.
For I acknowledge my transgressions: and my sin is ever before me. Against Thee, Thee only, have I sinned, and done this evil in Thy sight: that Thou mightest be justified when Thou speakest, and be clear when Thou judgest. I and I alone have sinned against Thee. Behold, I was shapen in iniquity; and in sin did my mother conceive me.
Behold, Thou desirest truth in the inward parts: and in the hidden part Thou shalt make me to know wisdom, Amen.
Purge me with hyssop, and I shall be clean: wash me, and I shall be whiter than snow. https://youtu.be/gHaFxKI-vc8
Make me to hear joy and gladness; that the bones which thou hast broken may rejoice. Hide Thy Face from my sins, and blot out all mine iniquities.
Create in me a clean heart, O God; and renew a right spirit within me. https://youtu.be/PqB2H9vCPKA
Cast me not away from thy presence; and take not thy holy spirit from me. Restore unto me the joy of thy salvation; and uphold me with thy free spirit. Then will I teach transgressors thy ways; and sinners shall be converted unto thee. Deliver me from bloodguiltiness, O God, thou God of my salvation: and my tongue shall sing aloud of Thy righteousness.
O Lord, open Thou my lips; and my mouth shall shew forth Thy praise. For Thou desirest not sacrifice; else would I give it: Thou delightest not in burnt offering.
The sacrifices of God are a broken spirit: a broken and a contrite heart, O God, Thou wilt not despise. https://youtu.be/xBQl_XDL9SY
Do good in Thy good pleasure unto Zion: build Thou the walls of Jerusalem. Then shalt Thou be pleased with the sacrifices of righteousness, with burnt offering and whole burnt offering: then shall they offer bullocks upon Thine altar.
Psalm 51