Noting that speaks of only Abraham when it says, "So Abraham returned to his young men," a Midrash asked: Where was Isaac? Rabbi Berekiah said in the name of the Rabbis of Babylon that Abraham sent Isaac to Shem to study Torah. The Midrash compared this to a woman who became wealthy through her spinning. She concluded that since she had become wealthy through her distaff, it would never leave her hand. Similarly, Abraham deduced that since all that had come to him was only because he engaged in Godly pursuits, he was unwilling that those should ever depart from his descendants. And Rabbi Jose the son of Rabbi Haninah taught that Abraham sent Isaac home at night, for fear of the evil eye.