Parallel
Numbers 31:19
Jewish Publication Society 1917 · Berean Standard Bible
And encamp ye without the camp seven days; whosoever hath killed any person, and whosoever hath touched any slain, purify yourselves on the third day and on the seventh day, ye and your captives.
All of you who have killed a person or touched the dead are to remain outside the camp for seven days. On the third day and the seventh day you are to purify both yourselves and your captives.