Galatians 4
26 Ref But the Jerusalem that is above is free, which is the mother of us all.
27 Ref For it is written, "Rejoice, you barren who don't bear. Break forth and shout, you that don't travail. For more are the children of the desolate than of her who has a husband."
28 Ref Now we, brothers, as Isaac was, are children of promise.