Psalm 51:2

Wash me thoroughly from my iniquity and cleanse me from my sin.

Psalm 51:7

Remove the sin in me with hyssop, and I shall be clean; wash me, and I shall be whiter than snow.

Isaiah 1:16

Wash yourselves, make yourselves clean; put away the evil of your doings from before my eyes; cease to do evil;

Ezekiel 36:25

And I will sprinkle clean water upon you, and ye shall be cleansed from all your filthiness, and from all your idols I will cleanse you.

Acts 22:16

And now why tarriest thou? Arise and be baptized and wash away thy sins, calling on the name of the Lord.

Revelation 1:5

and from Jesus, the Christ, who is the faithful witness and the first begotten of the dead and the prince of the kings of the earth. Unto him that loved us and washed us from our sins with his own blood

Jeremiah 4:14

O Jerusalem, wash thine heart from wickedness that thou may be saved. How long shalt thou entertain the thoughts of thy iniquity within thee?

1 Corinthians 6:11

And such were some of you, but now ye are washed, but now ye are sanctified, but now ye are justified in the name of the Lord Jesus and in the Spirit of our God.

Hebrews 10:21-22

and having that great priest over the house of God,

Revelation 7:14

And I said unto him, lord, thou knowest. And he said to me, These are those who came out of great tribulation and have washed their long robes, and made them white in the blood of the Lamb.

Psalm 19:12

Who can understand his errors? cleanse thou me from secret faults.

Zechariah 13:1

In that time there shall be an open fountain for the house of David and for the inhabitants of Jerusalem against sin and against uncleanness.

Hebrews 9:13-14

For if the blood of bulls and of goats and the ashes of a heifer sprinkling the unclean, sanctified to the purifying of the flesh,

1 John 1:7-9

But if we walk in the light, as he is in the light, we have communion with him in the midst of us, 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
Remove the sin in me with hyssop, and I shall be clean; wash me, and I shall be whiter than snow.
Psalm 19:12
Who can understand his errors? cleanse thou me from secret faults.

General references

Leviticus 15:5
And whoever touches his bed shall wash his clothes and bathe himself in water and be unclean until the evening.
Leviticus 16:30
for on that day he shall reconcile you to cleanse you that ye may be clean from all your sins before the LORD.
Jeremiah 33:8
And I will cleanse them from all their iniquity, with which they have sinned against me; and I will pardon all their sins, with which they have sinned against me and with which they rebelled against me.