Psalm 51:2

Thoroughly wash me from mine iniquity, And from my sin cleanse me,

Psalm 51:7

Thou cleansest me with hyssop and I am clean, Washest me, and than snow I am whiter.

Isaiah 1:16

Wash ye, make ye pure, Turn aside the evil of your doings, from before Mine eyes, Cease to do evil, learn to do good.

Ezekiel 36:25

And I have sprinkled over you clean water, And ye have been clean; From all your uncleannesses, and from all your idols, I do cleanse you.

Acts 22:16

and now, why tarriest thou? having risen, baptize thyself, and wash away thy sins, calling upon the name of the Lord.

Revelation 1:5

and from Jesus Christ, the faithful witness, the first-born out of the dead, and the ruler of the kings of the earth; to him who did love us, and did bathe us from our sins in his blood,

Jeremiah 4:14

Wash from evil thy heart, O Jerusalem, That thou mayest be saved, Till when dost thou lodge in thy heart Thoughts of thy strength?

1 Corinthians 6:11

And certain of you were these! but ye were washed, but ye were sanctified, but ye were declared righteous, in the name of the Lord Jesus, and in the Spirit of our God.

Hebrews 10:21-22

and a high priest over the house of God,

Revelation 7:14

and I have said to him, 'Sir, thou hast known;' and he said to me, 'These are those who are coming out of the great tribulation, and they did wash their robes, and they made their robes white in the blood of the Lamb;

Psalm 19:12

Errors! who doth understand? From hidden ones declare me innocent,

Zechariah 13:1

In that day there is a fountain opened To the house of David And to the inhabitants of Jerusalem, For sin and for impurity.

Hebrews 9:13-14

for if the blood of bulls, and goats, and ashes of an heifer, sprinkling those defiled, doth sanctify to the purifying of the flesh,

1 John 1:7-9

and if in the light we may walk, as He is in the light -- we have fellowship one with another, and the blood of Jesus Christ His Son doth cleanse us from every sin;

Treasury of Scripture Knowledge

Summary

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

Bible References

Cleanse

Psalm 51:7
Thou cleansest me with hyssop and I am clean, Washest me, and than snow I am whiter.
Psalm 19:12
Errors! who doth understand? From hidden ones declare me innocent,

General references

Leviticus 15:5
and any one who cometh against his bed doth wash his garments, and hath bathed with water, and been unclean till the evening.
Leviticus 16:30
for on this day he maketh atonement for you, to cleanse you; from all your sins before Jehovah ye are clean;
Jeremiah 33:8
And cleansed them from all their iniquity, That they have sinned against Me, And I have pardoned all their iniquities, That they have sinned against Me, And that they transgressed against Me.