Bereshis 25:20-22

Orthodox Jewish Bible

²⁰ And Yitzchak was arba’im shanah when he took Rivkah as his wife, the bat Betuel the Aramean of Padan Aram, the achot Lavan the Aramean.

²¹ And Yitzchak davened to Hashem on behalf of his isha, because she was barren; and Hashem was entreated of him, and Rivkah his isha conceived.

²² And the banim struggled jostling within her; and she said, If it be well, why am I thus? And she went to inquire of Hashem.