And her rival used to provoke her severely to irritate her, because Yahweh had shut up her womb. Bible

“Her rival.” Hannah’s rival was Penninah, Elkanah’s other wife. As we see in other places in the Bible (such as when Abraham took the slave Hagar as a concubine), and in history, the wives of a polygamous man often did not blend into “one happy family.” In fact, it was often the case that the two wives would each have their own tent, and the husband went back and forth between them.

Commentary for: 1 Samuel 1:6