Numbers 31:19

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

Numbers 5:2

“Command the sons of Israel that they send away from the camp every leper and everyone having a discharge and everyone who is unclean because of a dead person.

Numbers 19:11-22

The one who touches the corpse of any person shall be unclean for seven days.

1 Chronicles 22:8

But the word of the Lord came to me, saying, ‘You have shed much blood and have waged great wars; you shall not build a house to My name, because you have shed so much blood on the earth before Me.

Treasury of Scripture Knowledge

Summary

And do ye abide without the camp seven days: whosoever hath killed any person, and whosoever hath touched any slain, purify both yourselves and your captives on the third day, and on the seventh day.

Bible References

Abide

Numbers 5:2
“Command the sons of Israel that they send away from the camp every leper and everyone having a discharge and everyone who is unclean because of a dead person.
Numbers 19:11
The one who touches the corpse of any person shall be unclean for seven days.
1 Chronicles 22:8
But the word of the Lord came to me, saying, ‘You have shed much blood and have waged great wars; you shall not build a house to My name, because you have shed so much blood on the earth before Me.