Psalm 26:6

I will wash my hands in innocency: So will I compass thine altar, O Jehovah;

Psalm 73:13

Surely in vain have I cleansed my heart, And washed my hands in innocency;

Exodus 30:19-20

And Aaron and his sons shall wash their hands and their feet thereat:

Psalm 43:4

Then will I go unto the altar of God, Unto God my exceeding joy; And upon the harp will I praise thee, O God, my God.

Psalm 24:4

He that hath clean hands, and a pure heart; Who hath not lifted up his soul unto falsehood, And hath not sworn deceitfully.

Isaiah 1:16-18

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

Malachi 2:11-13

Judah hath dealt treacherously, and an abomination is committed in Israel and in Jerusalem; for Judah hath profaned the holiness of Jehovah which he loveth, and hath married the daughter of a foreign god.

Matthew 5:23-24

If therefore thou art offering thy gift at the altar, and there rememberest that thy brother hath aught against thee,

1 Corinthians 11:28-29

But let a man prove himself, and so let him eat of the bread, and drink of the cup.

1 Timothy 2:8

I desire therefore that the men pray in every place, lifting up holy hands, without wrath and disputing.

Titus 3:5

not by works done in righteousness, which we did ourselves, but according to his mercy he saved us, through the washing of regeneration and renewing of the Holy Spirit,

Hebrews 10:19-22

Having therefore, brethren, boldness to enter into the holy place by the blood of Jesus,

Treasury of Scripture Knowledge

Summary

I will wash mine hands in innocency: so will I compass thine altar, O LORD:

Bible References

Wash

Psalm 24:4
He that hath clean hands, and a pure heart; Who hath not lifted up his soul unto falsehood, And hath not sworn deceitfully.
Psalm 73:13
Surely in vain have I cleansed my heart, And washed my hands in innocency;
Exodus 30:19
And Aaron and his sons shall wash their hands and their feet thereat:
Isaiah 1:16
Wash you, make you clean; put away the evil of your doings from before mine eyes; cease to do evil;
Titus 3:5
not by works done in righteousness, which we did ourselves, but according to his mercy he saved us, through the washing of regeneration and renewing of the Holy Spirit,
Hebrews 10:19
Having therefore, brethren, boldness to enter into the holy place by the blood of Jesus,

So will

Psalm 43:4
Then will I go unto the altar of God, Unto God my exceeding joy; And upon the harp will I praise thee, O God, my God.
Malachi 2:11
Judah hath dealt treacherously, and an abomination is committed in Israel and in Jerusalem; for Judah hath profaned the holiness of Jehovah which he loveth, and hath married the daughter of a foreign god.
Matthew 5:23
If therefore thou art offering thy gift at the altar, and there rememberest that thy brother hath aught against thee,
1 Corinthians 11:28
But let a man prove himself, and so let him eat of the bread, and drink of the cup.
1 Timothy 2:8
I desire therefore that the men pray in every place, lifting up holy hands, without wrath and disputing.

General references

Exodus 30:19
And Aaron and his sons shall wash their hands and their feet thereat:
Exodus 40:7
And thou shalt set the laver between the tent of meeting and the altar, and shalt put water therein.
Leviticus 15:5
And whosoever toucheth his bed shall wash his clothes, and bathe himself in water, and be unclean until the even.
Job 9:30
If I wash myself with snow water, And make my hands never so clean;

American Standard Version Public Domain