“And he had two wives; the name of the one was Hannah, and the name of the other Peninnah: and Peninnah had children, but Hannah had no children.”
King James Version (KJV)
1:2 Two wives - As many had in those ages, tho' it was a transgression of the original institution of marriage. And it is probable that he took his second wife, namely, Peninnah, because Hannah was barren.