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 but based upon the complaints Ishmael's wife made in response to his questions, he gave her a message to give to her husband when he returned home, which was "change his threshold." When Ishmael arrived that night, he asked if they had had any visitors, and was informed by his wife of the man who had visited and what he said. Ishmael understood his father and explained to his wife that the visitor was his father and he had been instructed to divorce his wife and find a better one, which Ishmael did. Some time after this, Abraham returned to