Numbers 31:19

Purification After Battle

31:19 “Any of you who has killed anyone or touched any of the dead, remain outside the camp for seven days; purify yourselves and your captives on the third day, and on the seventh day.

Numbers 31:28

31:28 “You must exact a tribute for the Lord from the fighting men who went out to battle: one life out of five hundred, from the people, the cattle, and from the donkeys and the sheep.