CLV(i)
22 For it is written, that Abraham had two sons, one out of the maid and one out of the free womam."
23 But the one, indeed, out of the maid is begotten according to flesh, yet the one out of the free woman through the promise:"
24 which is allegorizing, for these women are two covenants; one, indeed, from mount Sinai, generating into slavery, which is Hagar."
25 Yet Hagar is mount Sinai in Arabia; it is in line with the Jerusalem which now is, for she is in slavery with her children."
26 Yet the Jerusalem above is free, who is mother of us all."