When forty years had passed, an angel appeared to him in the desert of Mount Sinai, in the flame of a burning bush.

It was he who with the congregation in the desert went between the angel who spoke to him on Mount Sinai and our forefathers, and received and communicated to you utterances that still live.

This is an allegorical utterance. For the women are two agreements, one coming from Mount Sinai, bearing children that are to be slaves; that is, Hagar

(and Hagar means Mount Sinai, in Arabia), and corresponds to the present Jerusalem, for Jerusalem is in slavery with her children.