Biblical Marriage (Polygyny)
EXODUS 21:10
If he take him another wife; her food, her raiment, and her duty of marriage, shall he not diminish.
2 SAMUEL 12:8
And I gave thee thy master's house, and thy master's wives into thy bosom, and gave thee the house of Israel and of Judah; and if that had been too little, I would moreover have given unto thee such and such things.