Numbers 19:12

He is to purify himself with the water on the third day and the seventh day; then he will be clean. But if he does not purify himself on the third and seventh days, he will not be clean.

Numbers 31:19

“You are to remain outside the camp for seven days. All of you and your prisoners who have killed a person or touched the dead are to purify yourselves on the third day and the seventh day.

Exodus 19:11

and be prepared by the third day, for on the third day the Lord will come down on Mount Sinai in the sight of all the people.

Exodus 19:15

He said to the people, “Be prepared by the third day. Do not have sexual relations with women.”

Leviticus 7:17

But what remains of the sacrificial meat by the third day must be burned up.

Numbers 19:17-19

For the purification of the unclean person, they are to take some of the ashes of the burnt sin offering, put them in a jar, and add fresh water to them.

Psalm 51:7

Purify me with hyssop, and I will be clean;
wash me, and I will be whiter than snow.

Ezekiel 36:25

I will also sprinkle clean water on you, and you will be clean. I will cleanse you from all your impurities and all your idols.

Hosea 6:2

He will revive us after two days,
and on the third day He will raise us up
so we can live in His presence.

Acts 15:9

He made no distinction between us and them, cleansing their hearts by faith.

1 Corinthians 15:3-4

For I passed on to you as most important what I also received:

that Christ died for our sins
according to the Scriptures,

Revelation 7:14

I said to him, “Sir, you know.”

Then he told me:

These are the ones coming out of the great tribulation.
They washed their robes and made them white
in the blood of the Lamb.

Treasury of Scripture Knowledge

Summary

He shall purify himself with it on the third day, and on the seventh day he shall be clean: but if he purify not himself the third day, then the seventh day he shall not be clean.

General references

Bible References

He shall purify

Numbers 19:17
For the purification of the unclean person, they are to take some of the ashes of the burnt sin offering, put them in a jar, and add fresh water to them.
Psalm 51:7
Purify me with hyssop, and I will be clean;
wash me, and I will be whiter than snow.
Ezekiel 36:25
I will also sprinkle clean water on you, and you will be clean. I will cleanse you from all your impurities and all your idols.
Acts 15:9
He made no distinction between us and them, cleansing their hearts by faith.
Revelation 7:14
I said to him, “Sir, you know.”

Then he told me:

These are the ones coming out of the great tribulation.
They washed their robes and made them white
in the blood of the Lamb.

Third day

Numbers 31:19
“You are to remain outside the camp for seven days. All of you and your prisoners who have killed a person or touched the dead are to purify yourselves on the third day and the seventh day.
Exodus 19:11
and be prepared by the third day, for on the third day the Lord will come down on Mount Sinai in the sight of all the people.
Leviticus 7:17
But what remains of the sacrificial meat by the third day must be burned up.
Hosea 6:2
He will revive us after two days,
and on the third day He will raise us up
so we can live in His presence.
1 Corinthians 15:3
For I passed on to you as most important what I also received:

that Christ died for our sins
according to the Scriptures,

General references

Leviticus 7:19
“Meat that touches anything unclean must not be eaten; it is to be burned up. Everyone who is clean may eat any other meat.
Ezekiel 44:26
After he is cleansed, he is to count off seven days for himself.

Holman Christian Standard Bible®, Copyright © 1999, 2000, 2002, 2003, 2009 by Holman Bible Publishers.