'Prisoners' in the Bible

When the Canaanite king of Arad, who lived in the Negev, heard that Israel was coming on the Atharim road, he fought against Israel and captured some prisoners.

They brought the prisoners, animals, and spoils of war to Moses, Eleazar the priest, and the Israelite community at the camp on the plains of Moab by the Jordan across from Jericho.

“You are to remain outside the camp for seven days. All of you and your prisoners who have killed a person or touched the dead are to purify yourselves on the third day and the seventh day.