Flavius Josephus, Antiquities of the Jews
William Whiston, A.M., Ed.

[277] SO Moses, when he understood that the Pharaoh, in whose reign he fled away, was dead, asked leave of Raguel to go to Egypt, for the benefit of his own people. And he took with him Zipporah, the daughter of Raguel, whom he had married, and the children he had by her, Gersom and Eleazer, and made haste into Egypt. Now the former of those names, Gersom, in the Hebrew tongue, signifies that he was in a strange land; and Eleazer, that, by the assistance of the God of his fathers, he had escaped from the Egyptians. Now when they were near the borders, Aaron his brother, by the command of God, met him, to whom he declared what had befallen him at the mountain, and the commands that God had given him. But as they were going forward, the chief men among the Hebrews, having learned that they were coming, met them: to whom Moses declared the signs he had seen; and while they could not believe them, he made them see them, So they took courage at these surprising and unexpected sights, and hoped well of their entire deliverance, as believing now that God took care of their preservation.