There is a saying that is almost universal amongst Muslims- "first Saturday and then Sunday". Basically get rid of the Jewish folks then start on the Christians. What does the bible say about these two sons of Abraham? Yes they were brothers and yet the Muslims will always persecute the Jews. Gal 4:22 For it is written, that Abraham had two sons, the one by a bondmaid, the other by a freewoman. Gal 4:23 But he who was of the bondwoman was born after the flesh; but he of the freewoman was by promise. Gal 4:24 Which things are an allegory: for these are the two covenants; the one from the mount Sinai, which gendereth to bondage, which is Agar. Gal 4:25 For this Agar is mount Sinai in Arabia, and answereth to Jerusalem which now is, and is in bondage with her children. Gal 4:26 But Jerusalem which is above is free, which is the mother of us all. Gal 4:27 For it is written, Rejoice, thou barren that bearest not; break forth and cry, thou that travailest not: for the desolate hath many more children than she which hath an husband. Gal 4:28 Now we, brethren, as Isaac was, are the children of promise. Gal 4:29 But as then he that was born after the flesh persecuted him that was born after the Spirit, even so it is now.