John 19:34

"But one of the soldiers with a spear pierced his side, and forthwith came there out blood and water."

Cross References (ranked by relevance)

In that day there shall be a fountain opened to the house of David and to the inhabitants of Jerusalem for sin and for uncleanness.

Zechariah 12:10

And I will pour upon the house of David, and upon the inhabitants of Jerusalem, the spirit of grace and of supplications: and they shall look upon me whom they have pierced, and they shall mourn for him, as one mourneth for his only son, and shall be in bitterness for him, as one that is in bitterness for his firstborn.

Ezekiel 36:25

Then will I sprinkle clean water upon you, and ye shall be clean: from all your filthiness, and from all your idols, will I cleanse you.

Revelation 7:14

And I said unto him, Sir, thou knowest. And he said to me, These are they which came out of great tribulation, and have washed their robes, and made them white in the blood of the Lamb.

Ephesians 5:26

That he might sanctify and cleanse it with the washing of water by the word,

Revelation 1:5

And from Jesus Christ, who is the faithful witness, and the first begotten of the dead, and the prince of the kings of the earth. Unto him that loved us, and washed us from our sins in his own blood,

Psalm 51:7

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

1 Corinthians 6:11

And such were some of you: but ye are washed, but ye are sanctified, but ye are justified in the name of the Lord Jesus, and by the Spirit of our God.

Hebrews 9:13

For if the blood of bulls and of goats, and the ashes of an heifer sprinkling the unclean, sanctifieth to the purifying of the flesh:

Titus 2:14

Who gave himself for us, that he might redeem us from all iniquity, and purify unto himself a peculiar people, zealous of good works.

Hebrews 9:22

And almost all things are by the law purged with blood; and without shedding of blood is no remission.

1 Peter 3:21

The like figure whereunto even baptism doth also now save us (not the putting away of the filth of the flesh, but the answer of a good conscience toward God,) by the resurrection of Jesus Christ:

1 Corinthians 1:30

But of him are ye in Christ Jesus, who of God is made unto us wisdom, and righteousness, and sanctification, and redemption:

Matthew 27:62

Now the next day, that followed the day of the preparation, the chief priests and Pharisees came together unto Pilate,

Acts 22:16

And now why tarriest thou? arise, and be baptized, and wash away thy sins, calling on the name of the Lord.