Matthew 3:11

I indeed am baptizing you in water, unto repentance; but One is coming after me, mightier than I, whose sandals I am not worthy to carry. He will baptize you in the Holy Spirit and in fire.

Luke 11:38-39

And the Pharisee noticed, to his amazement, that he did not wash his hands before eating,

Ephesians 5:26-27

in order that after cleansing her in the bath of baptism, he might sanctify her by his word,

Hebrews 9:9-10

This is a parable, for the present time, according to which gifts and sacrifices are offered that are not able, as far as conscience is concerned, to perfect the worshiper;

Hebrews 10:22

let us draw near with a true heart, in full assurance of faith, our hearts sprinkled from and evil conscience, and our bodies bathed in pure water.

1 Peter 3:21

Baptism, the counterpart of that, now saves you (not the washing off of the filth of the flesh, but the prayer for a good conscience toward God), through the resurrection of Jesus Christ.

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 has loosed us from our sins in his own blood;

Treasury of Scripture Knowledge

Summary

But it shall be, when evening cometh on, he shall wash himself with water: and when the sun is down, he shall come into the camp again.

Bible References

Wash himself

Matthew 3:11
I indeed am baptizing you in water, unto repentance; but One is coming after me, mightier than I, whose sandals I am not worthy to carry. He will baptize you in the Holy Spirit and in fire.
Luke 11:38
And the Pharisee noticed, to his amazement, that he did not wash his hands before eating,
Ephesians 5:26
in order that after cleansing her in the bath of baptism, he might sanctify her by his word,
Hebrews 9:9
This is a parable, for the present time, according to which gifts and sacrifices are offered that are not able, as far as conscience is concerned, to perfect the worshiper;
Hebrews 10:22
let us draw near with a true heart, in full assurance of faith, our hearts sprinkled from and evil conscience, and our bodies bathed in pure water.
1 Peter 3:21
Baptism, the counterpart of that, now saves you (not the washing off of the filth of the flesh, but the prayer for a good conscience toward God), through the resurrection of Jesus Christ.
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 has loosed us from our sins in his own blood;