Psalm 51:2

Wash me thoroughly from my iniquity. Cleanse me from my sin.

Psalm 51:7

Purify me with hyssop, and I will be clean. Wash me, and I will be whiter than snow.

Isaiah 1:16

Wash yourselves, make yourself clean. Put away the evil of your doings from before my eyes. Cease to do evil.

Ezekiel 36:25

I will sprinkle clean water on you, and you shall be clean: from all your filthiness, and from all your idols, will I cleanse you.

Acts 22:16

Now why do you wait? Arise, be baptized, and wash away your sins, calling on the name of the Lord.'

Revelation 1:5

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

Jeremiah 4:14

Jerusalem, wash your heart from wickedness, that you may be saved. How long shall your evil thoughts lodge within you?

1 Corinthians 6:11

Such were some of you, but you were washed. But you were sanctified. But you were justified in the name of the Lord Jesus, and in the Spirit of our God.

Hebrews 10:21-22

and having a great priest over the house of God,

Revelation 7:14

I told him, "My lord, you know." He said to me, "These are those who came out of the great tribulation. They washed their robes, and made them white in the Lamb's blood.

Psalm 19:12

Who can discern his errors? Forgive me from hidden errors.

Zechariah 13:1

"In that day there will be a spring opened to the house of David and to the inhabitants of Jerusalem, for sin and for uncleanness.

Hebrews 9:13-14

For if the blood of goats and bulls, and the ashes of a heifer sprinkling those who have been defiled, sanctify to the cleanness of the flesh:

1 John 1:7-9

But if we walk in the light, as he is in the light, we have fellowship with one another, and the blood of Jesus Christ, his Son, cleanses us 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
Purify me with hyssop, and I will be clean. Wash me, and I will be whiter than snow.
Psalm 19:12
Who can discern his errors? Forgive me from hidden errors.

General references

Leviticus 15:5
Whoever touches his bed shall wash his clothes, and bathe himself in water, and be unclean until the evening.
Leviticus 16:30
for on this day shall atonement be made for you, to cleanse you; from all your sins you shall be clean before Yahweh.
Jeremiah 33:8
I will cleanse them from all their iniquity, by which they have sinned against me; and I will pardon all their iniquities, by which they have sinned against me, and by which they have transgressed against me.