Philip the Arab and Christianity that appear—save for one reference to Ishmael—figure in the political history of the first three centuries of the Christian era. To Eusebius, the Saracens of the 4th century are direct-line descendants of the biblical Ishmaelites, descendants of the handmaid, Hagar, and the patriarch, Abraham. They are thus outcasts, beyond God's Covenant with the favored son of Abraham, Isaac. The twin images of the Ishmaelite and the Saracen—outcasts and "latrones", raiders of the frontiers—reinforce each other and give Eusebius' portrait of the Arab nation an unhappy color. He may have been reluctant to associate the first Christian emperor with a people
Ishmael in Islam Ishmael was almost always seen in a negative light in Jewish and Christian texts, as he becomes the symbol for the "other" in these religions. As the Islamic community became more powerful, some Jewish midrash about Ishmael was modified so that he was portrayed more negatively in order to challenge the Islamic view that Ishmael, and thus the Muslims, were the favored descendents of Abraham. This became the genealogy according to Jewish sources and the Bible, in contrast with the genealogy of Arabs according to Muslims. The development of Islam created pressure for Islam to be somehow different from Judaism