The whole Israelite community set out from the Desert of Sin, traveling from place to place as the Lord commanded. They camped at Rephidim, but there was no water for the people to drink.
Now Moses was tending the flock of Jethro his father-in-law, the priest of Midian, and he led the flock to the far side of the wilderness and came to Horeb, the mountain of God.
And God said, “I will be with you. And this will be the sign to you that it is I who have sent you: When you have brought the people out of Egypt, you will worship God on this mountain.”
The Lord spoke to Moses in the tent of meeting in the Desert of Sinai on the first day of the second month of the second year after the Israelites came out of Egypt. He said:
He was in the assembly in the wilderness, with the angel who spoke to him on Mount Sinai, and with our ancestors; and he received living words to pass on to us.
These things are being taken figuratively: The women represent two covenants. One covenant is from Mount Sinai and bears children who are to be slaves: This is Hagar.