Numbers 19:12

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.

Numbers 31:19

And encamp outside the camp seven days; whoever hath killed a person, and whoever hath touched any slain; ye shall purify yourselves on the third day, and on the seventh day, you and your captives.

Exodus 19:11

and let them be ready for the third day; for on the third day Jehovah will come down before the eyes of all the people on mount Sinai.

Exodus 19:15

And he said to the people, Be ready for the third day; do not come near your wives.

Leviticus 7:17

and the remainder of the flesh of the sacrifice on the third day shall be burned with fire.

Numbers 19:17-19

And they shall take for the unclean of the ashes of the purification-offering that hath been burned, and shall put running water thereon in a vessel;

Psalm 51:7

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

Ezekiel 36:25

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

Hosea 6:2

After two days will he revive us; on the third day he will raise us up, and we shall live before his face;

Acts 15:9

and put no difference between us and them, having purified their hearts by faith.

1 Corinthians 15:3-4

For I delivered to you, in the first place, what also I had received, that Christ died for our sins, according to the scriptures;

Revelation 7:14

And I said to him, My lord, thou knowest. And he said to me, These are they who come out of the great tribulation, and have washed their robes, and have 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
And they shall take for the unclean of the ashes of the purification-offering that hath been burned, and shall put running water thereon in a vessel;
Psalm 51:7
Purge me with hyssop, and I shall be clean; wash me, and I shall be whiter than snow.
Ezekiel 36:25
And I will sprinkle clean water upon you, and ye shall be clean: from all your uncleannesses and from all your idols will I cleanse you.
Acts 15:9
and put no difference between us and them, having purified their hearts by faith.
Revelation 7:14
And I said to him, My lord, thou knowest. And he said to me, These are they who come out of the great tribulation, and have washed their robes, and have made them white in the blood of the Lamb.

Third day

Numbers 31:19
And encamp outside the camp seven days; whoever hath killed a person, and whoever hath touched any slain; ye shall purify yourselves on the third day, and on the seventh day, you and your captives.
Exodus 19:11
and let them be ready for the third day; for on the third day Jehovah will come down before the eyes of all the people on mount Sinai.
Leviticus 7:17
and the remainder of the flesh of the sacrifice on the third day shall be burned with fire.
Hosea 6:2
After two days will he revive us; on the third day he will raise us up, and we shall live before his face;
1 Corinthians 15:3
For I delivered to you, in the first place, what also I had received, that Christ died for our sins, according to the scriptures;

General references

Leviticus 7:19
And the flesh that toucheth anything unclean shall not be eaten; it shall be burned with fire. And as to the flesh, all that are clean may eat the flesh.
Ezekiel 44:26
And after he is cleansed, they shall count unto him seven days.