Original Verse:
Psalms Chapter 51 Verse 2Wash me thoroughly from mine iniquity, And cleanse me from my sin.

Reference Verses:
Ezekiel Chapter 36 Verse 33Thus saith the Lord Jehovah: In the day that I cleanse you from all your iniquities, I will cause the cities to be inhabited, and the waste places shall be builded.
Hebrews Chapter 9 Verse 14how much more shall the blood of Christ, who through the eternal Spirit offered himself without blemish unto God, cleanse your conscience from dead works to serve the living God?
1st John Chapter 1 Verse 7but if we walk in the light, as he is in the light, we have fellowship one with another, and the blood of Jesus his Son cleanseth us from all sin.
1st John Chapter 1 Verse 9If we confess our sins, he is faithful and righteous to forgive us our sins, and to cleanse us from all unrighteousness.
Leviticus Chapter 16 Verse 30for on this day shall atonement be made for you, to cleanse you; from all your sins shall ye be clean before Jehovah.
Isaiah Chapter 1 Verse 16Wash you, make you clean; put away the evil of your doings from before mine eyes; cease to do evil;
Isaiah Chapter 4 Verse 3And it shall come to pass, that he that is left in Zion, and he that remaineth in Jerusalem, shall be called holy, even every one that is written among the living in Jerusalem;
Jeremiah Chapter 4 Verse 14O Jerusalem, wash thy heart from wickedness, that thou mayest be saved. How long shall thine evil thoughts lodge within thee?
Acts Chapter 22 Verse 16And now why tarriest thou? arise, and be baptized, and wash away thy sins, calling on his name.
Revelation Chapter 1 Verse 5and from Jesus Christ, [who is] the faithful witness, the firstborn of the dead, and the ruler of the kings of the earth. Unto him that loveth us, and loosed us from our sins by his blood;
Job Chapter 14 Verse 4Who can bring a clean thing out of an unclean? not one.
Jeremiah Chapter 33 Verse 8And I will cleanse them from all their iniquity, whereby they have sinned against me; and I will pardon all their iniquities, whereby they have sinned against me, and whereby they have transgressed against me.