Deuteronomy 21:6

And all the elders of that city, that are nearest unto him that is slain, shall wash their hands over the heifer whose neck is broken in the watercourse,

Psalm 26:6

I will wash my hands in innocency, and will encompass thine altar, O Jehovah,

Psalm 73:13

Truly have I purified my heart in vain, and washed my hands in innocency:

Job 9:30

If I washed myself with snow-water, and cleansed my hands in purity,

Psalm 19:12

Who understandeth his errors? Purify me from secret faults.

Psalm 51:2

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

Psalm 51:7

Purge me with hyssop, and I shall be clean; wash me, and I shall be whiter than snow.

Psalm 51:14

Deliver me from blood-guiltiness, O God, thou God of my salvation: my tongue shall sing aloud of thy righteousness.

Jeremiah 2:22

For though thou wash thee with nitre, and take thee much potash, thine iniquity is marked before me, saith the Lord Jehovah.

Matthew 27:24-25

And Pilate, seeing that it availed nothing, but that rather a tumult was arising, having taken water, washed his hands before the crowd, saying, I am guiltless of the blood of this righteous one: see ye to it.

Hebrews 9:10

consisting only of meats and drinks and divers washings, ordinances of flesh, imposed until the time of setting things right.

Treasury of Scripture Knowledge

Summary

And all the elders of that city, that are next unto the slain man, shall wash their hands over the heifer that is beheaded in the valley:

Bible References

Wash their hands

Job 9:30
If I washed myself with snow-water, and cleansed my hands in purity,
Psalm 19:12
Who understandeth his errors? Purify me from secret faults.
Psalm 26:6
I will wash my hands in innocency, and will encompass thine altar, O Jehovah,
Psalm 51:2
Wash me fully from mine iniquity, and cleanse me from my sin.
Psalm 73:13
Truly have I purified my heart in vain, and washed my hands in innocency:
Jeremiah 2:22
For though thou wash thee with nitre, and take thee much potash, thine iniquity is marked before me, saith the Lord Jehovah.
Matthew 27:24
And Pilate, seeing that it availed nothing, but that rather a tumult was arising, having taken water, washed his hands before the crowd, saying, I am guiltless of the blood of this righteous one: see ye to it.
Hebrews 9:10
consisting only of meats and drinks and divers washings, ordinances of flesh, imposed until the time of setting things right.