G-d doesn't speak directly to women

 Bereishis Rabbah (20:6) UNTO THE WOMAN HE SAID: I WILL GREATLY MULTIPLY THY PAlN AND THY TRAVAIL, etc. (III, 16). R. Judah b. R. Simon and R. Johanan in the name of R. Eleazar b. R. Simon said: The Holy One, blessed be He, never spoke directly with a woman save with Sarah, and that too was due to a particular cause. R. Abba b. Kahana said in R. Biryi's name: And what a roundabout way He went in order to speak with her! As it is written,And He said: Nay; but thou didst laugh (Gen. XVIII, 15). But it is written, And Hagar called the name of the Lord that spoke unto her, etc. (ib. XVl, 13)? R. Joshua b. Nehemiah answered in R. Idi's name: That was through an angel. But it is written, And the Lord said unto her-Rebekah (ib. XXV, 23)? R. Levi said in the name of R. Hama b. R. Hanina: That was through an angel. R. Eleazar said in the name of R. Jose b. Zimra: That was through the medium of Shem [the son of Noah].