Galatians 4:25-27

4:25 Now Hagar represents Mount Sinai in Arabia and corresponds to the present Jerusalem, for she is in slavery with her children. 4:26 But the Jerusalem above is free, and she is our mother. 4:27 For it is written:

“Rejoice, O barren woman who does not bear children;

break forth and shout, you who have no birth pains,

because the children of the desolate woman are more numerous

than those of the woman who has a husband.”