Treasury of Scripture Knowledge

Summary

If a man have two wives, one beloved, and another hated, and they have born him children, both the beloved and the hated; and if the firstborn son be hers that was hated:

Bible References

Two wives

Genesis 29:18
Jacob loved Rachel, so he said, “I will serve you [as a hired workman] for seven years [in return] for [the privilege of marrying] Rachel your younger daughter.”
1 Samuel 1:4
When the day came that Elkanah sacrificed, he would give portions [of the sacrificial meat] to Peninnah his wife and all her sons and daughters.