Acts 15:9

and he made no distinction between us and them, but cleansed their hearts by faith.

1 Corinthians 15:3-4

For I delivered to you as of first importance what I also received, that Christ died for our sins according to the Scriptures,

Revelation 7:14

I said to him, "Sir, you know." And he said to me, "These are they who have come out of the great tribulation; they have 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.

He shall purify

Third day

Bible References

He shall purify

Acts 15:9
and he made no distinction between us and them, but cleansed their hearts by faith.
Revelation 7:14
I said to him, "Sir, you know." And he said to me, "These are they who have come out of the great tribulation; they have washed their robes and made them white in the blood of the Lamb.

Third day

1 Corinthians 15:3
For I delivered to you as of first importance what I also received, that Christ died for our sins according to the Scriptures,