Matthew 3:11

"I, indeed, immerse you in water unto repentance, but He Who is coming after me is mightier than I, whose sandals I am not worthy to bear, He will immerse you in the Holy Spirit and fire;

Luke 11:38-39

And the Pharisee, seeing it, marvelled that He was not first immersed before breakfast.

Ephesians 5:26-27

that He might sanctify it, having cleansed it by the washing of the water in the word,

Hebrews 9:9-10

which, indeed, is a figure for the time present, according to which are offered both gifts and sacrifices, which cannot, as to the conscience, make the worshiper perfect;

Hebrews 10:22

let us approach with a true heart in full assurance of faith, having had our hearts sprinkled from an evil conscience, and our body washed with pure water,

1 Peter 3:21

which, in its anti-type, immersion, now saves you also (not a putting away of the filth of flesh, but the requirement of a good conscience toward God), through the resurrection of Jesus Christ,

Revelation 1:5

and from Jesus Christ, the faithful Witness, the First-born of the dead, and the Ruler of the kings of the earth. To Him Who loveth, and 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, immerse you in water unto repentance, but He Who is coming after me is mightier than I, whose sandals I am not worthy to bear, He will immerse you in the Holy Spirit and fire;
Luke 11:38
And the Pharisee, seeing it, marvelled that He was not first immersed before breakfast.
Ephesians 5:26
that He might sanctify it, having cleansed it by the washing of the water in the word,
Hebrews 9:9
which, indeed, is a figure for the time present, according to which are offered both gifts and sacrifices, which cannot, as to the conscience, make the worshiper perfect;
Hebrews 10:22
let us approach with a true heart in full assurance of faith, having had our hearts sprinkled from an evil conscience, and our body washed with pure water,
1 Peter 3:21
which, in its anti-type, immersion, now saves you also (not a putting away of the filth of flesh, but the requirement of a good conscience toward God), through the resurrection of Jesus Christ,
Revelation 1:5
and from Jesus Christ, the faithful Witness, the First-born of the dead, and the Ruler of the kings of the earth. To Him Who loveth, and loosed us from our sins in His own blood,