4:19. My little children, of whom I am in labour again, until Christ be formed in you.
4:20. And I would willingly be present with you now and change my voice: because I am ashamed for you.
4:21. Tell me, you that desire to be under the law, have you not read the law?
4:22. For it is written that Abraham had two sons: the one by a bondwoman and the other by a free woman.
4:23. But he who was of the bondwoman was born according to the flesh: but he of the free woman was by promise.
4:24. Which things are said by an allegory. For these are the two testaments. The one from Mount Sina, engendering unto bondage, which is Agar.
4:25. For Sina is a mountain in Arabia, which hath affinity to that Jerusalem which now is: and is in bondage with her children.
4:26. But that Jerusalem which is above is free: which is our mother.
4:27. For it is written: Rejoice, thou barren, that bearest not: break forth and cry thou that travailest not: for many are the children of the desolate, more than of her that hath a husband.
4:28. Now we, brethren, as Isaac was, are the children of promise.