Cleansing is done by

God

Psalms 51:1-13

1 Have mercy on me, O God, according to your unfailing love; according to your great compassion blot out my transgressions.

2 Wash away all my iniquity and cleanse me from my sin.

3 For I know my transgressions, and my sin is always before me.

4 Against you, you only, have I sinned and done what is evil in your sight, so that you are proved right when you speak and justified when you judge.

5 Surely I was sinful at birth, sinful from the time my mother conceived me.

6 Surely you desire truth in the inner parts; you teach me wisdom in the inmost place.

7 Cleanse me with hyssop, and I will be clean; wash me, and I will be whiter than snow.

8 Let me hear joy and gladness; let the bones you have crushed rejoice.

9 Hide your face from my sins and blot out all my iniquity.

10 Create in me a pure heart, O God, and renew a steadfast spirit within me.

11 Do not cast me from your presence or take your Holy Spirit from me.

12 Restore to me the joy of your salvation and grant me a willing spirit, to sustain me.

13 Then I will teach transgressors your ways, and sinners will turn back to you.

Titus 2:11-13

11 For the grace of God that brings salvation has appeared to all men.

12 It teaches us to say “No” to ungodliness and worldly passions, and to live self-controlled, upright and godly lives in this present age,

13 while we wait for the blessed hope—the glorious appearing of our great God and Savior, Jesus Christ,

Christ

Matthew 1:21

She will give birth to a son, and you are to give him the name Jesus, because he will save his people from their sins.”

Revelation 1:5

and from Jesus Christ, who is the faithful witness, the firstborn from the dead, and the ruler of the kings of the earth. To him who loves us and has freed us from our sins by his blood,