21. Tell me, you who desire to be under the law, have you not read the law?
22. For it is written that Abraham had two sons: one by a servant woman, and one by a free woman.
23. And he who was of the servant was born according to the flesh. But he who was of the free woman was born by the promise.
24. These things are said through an allegory. For these represent the two testaments. Certainly the one, on Mount Sinai, gives birth unto servitude, which is Hagar.
25. For Sinai is a mountain in Arabia, which is related to the Jerusalem of the present time, and it serves with her sons.
26. But that Jerusalem which is above is free; the same is our mother.