Jacob—The Righteous Deceiver — Knowing Scripture
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Meaning, origin and history of the name Jacob
Who Was Jacob in the Bible? Why Did He Wrestle With God?
Smith, Map is Not Territory: Studies in the History of Religions, University of Chicago Press 1978 ,.
Jacob and Esau grew up together living a nomadic life.
Rebekah knew this word from Yahweh, and she most certainly told Isaac.