Galatians 4:22-25

22The Scriptures say that Abraham had two sons, one from his slave wife and one from his freeborn wife.

23The son of the slave wife was born in a human attempt to bring about the fulfillment of God’s promise. But the son of the freeborn wife was born as God’s own fulfillment of his promise.

24These two women serve as an illustration of God’s two covenants. The first woman, Hagar, represents Mount Sinai where people received the law that enslaved them.

25And now Jerusalem is just like Mount Sinai in Arabia, because she and her children live in slavery to the law.