Numbers 31:19

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.
BSB · Berean Standard Bible
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.
KJV · King James Version
“Encamp outside of the camp for seven days. Whoever has killed any person, and whoever has touched any slain, purify yourselves on the third day and on the seventh day, you and your captives.
WEB · World English 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.
ASV · American Standard Version

Related passages

From the Treasury of Scripture Knowledge, grouped by the word they explain.

abide
Though the Israelites had acted by the commission of God, yet they had contracted pollution by touching the dead; and the spoil having been used by idolaters, must also be purified in the prescribed manner.
Numbers 5:2; Numbers 19:11–22; 1 Chronicles 22:8