Psalm 51:2

Let all my wrongdoing be washed away, and make me clean from evil.

Psalm 51:7

Make me free from sin with hyssop: let me be washed whiter than snow.

Isaiah 1:16

Be washed, make yourselves clean; put away the evil of your doings from before my eyes; let there be an end of sinning;

Ezekiel 36:25

And I will put clean water on you so that you may be clean: from all your unclean ways and from all your images I will make you clean.

Acts 22:16

And now, why are you waiting? get up, and have baptism, for the washing away of your sins, giving worship to his name.

Revelation 1:5

And from Jesus Christ, the true witness, the first to come back from the dead, and the ruler of the kings of the earth. To him who had love for us and has made us clean from our sins by his blood;

Jeremiah 4:14

O Jerusalem, make your heart clean from evil, so that you may have salvation. How long are evil purposes to have a resting-place in you?

1 Corinthians 6:11

And such were some of you; but you have been washed, you have been made holy, you have been given righteousness in the name of the Lord Jesus Christ and in the Spirit of our God.

Hebrews 10:21-22

And having a great priest over the house of God,

Revelation 7:14

And I said to him, My lord, you have knowledge. And he said to me, These are they who came through the great testing, and their robes have been washed and made white in the blood of the Lamb.

Psalm 19:12

Who has full knowledge of his errors? make me clean from secret evil.

Zechariah 13:1

In that day there will be a fountain open to the family of David and to the people of Jerusalem, for sin and for that which is unclean.

Hebrews 9:13-14

For if the blood of goats and oxen, and the dust from the burning of a young cow, being put on the unclean, make the flesh clean:

1 John 1:7-9

But if we are walking in the light, as he is in the light, we are all united with one another, and the blood of Jesus his Son makes us clean from all sin.

Treasury of Scripture Knowledge

Summary

Wash me throughly from mine iniquity, and cleanse me from my sin.

Bible References

Cleanse

Psalm 51:7
Make me free from sin with hyssop: let me be washed whiter than snow.
Psalm 19:12
Who has full knowledge of his errors? make me clean from secret evil.

General references

Leviticus 15:5
And anyone touching his bed is to have his clothing washed and his body bathed in water and be unclean till evening.
Leviticus 16:30
For on this day your sin will be taken away and you will be clean: you will be made free from all your sins before the Lord.
Jeremiah 33:8
And I will make them clean from all their sin, with which they have been sinning against me; I will have forgiveness for all their sins, with which they have been sinning against me, and with which they have done evil against me.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain