New Revised Standard Version
But all the young girls who have not known a man by sleeping with him, keep alive for yourselves.

Contemporary English Version
But do not kill the young women who have never had sex. You may keep them for yourselves."

New American Bible
But you may spare for yourselves all the girls who have not had sexual relations.

Douay-Rheims Bible
But the girls, and all the women that are virgins save for yourselves:

But the girls, and all the women that are virgins save for yourselves:

keep alive for yourselves.

Numbers 21:10-14 And the children of Israel setting forwards camped in Oboth. . . .

, proves most decisively to the contrary. They were merely permitted to possess them as female slaves, educating them in their families, and employing them as domestics; for the laws concerning fornication, concubinage, and marriage, were in full force, and prohibited an Israelite even from marrying a captive, without delays and previous formalities; and if he afterwards divorced her, he was to set here at liberty, 'because he had humbled her.'

Leviticus 25:44 Let your bondmen, and your bondwomen, be of the nations that are round about you:

Deuteronomy 20:14 Excepting women and children, cattle and other things, that are in the city. And thou shalt divide all the prey to the army, and thou shalt eat the spoils of thy enemies, which the Lord thy God shall give thee.

Deuteronomy 21:10-14 If thou go out to fight against thy enemies, and the Lord thy God deliver them into thy hand, and thou lead them away captives, . . .

2 Chronicles 28:8-10 And the children of Israel carried away of their brethren two hundred thousand women, boys, and girls, and an immense booty: and they brought it to Samaria. . . .

Isaiah 14:2 And the people shall take them, and bring them into their place: and the house of Israel shall possess them in the land of the Lord for servants and handmaids: and they shall make them captives that had taken them, and shall subdue their oppressors.