Genesis 25:21 Isaac prayed to the Lord on behalf of his wife, because she was childless. The Lord answered his prayer, and his wife Rebekah became pregnant. 22The babies jostled each other within her, and she said, “Why is this happening to me?” So she went to inquire of the Lord.
23The Lord said to her,
“Two nations are in your womb,
and two peoples from within you will be separated;
one people will be stronger than the other,
and the older will serve the younger.”
First Isaac prayed to God on behave of Rebekah. God answered and she became pregnant.
Then, instead of praying to God for her pregnancy trouble, she inquired God. God answered her with a detailed answer.
This was hundreds of years before Moses organizing the Hebrew religion. How were Rebekah's inquiry and answer accomplished? Did she use ancient divination?