These changes could not have been arbitrary. Jacob, son of Isaac, son of Abraham, was the father of the twelve tribes of Israel. In the Bible, we are told that a divine being he wrestled with ...

Abraham, center, with grandson Jacob ... Jacob produced twelve sons, each of whom became the father of one of the twelve tribes of Israel. Reuven, Shimon, Levi, Yehuda, Issachar, Zevulun, Dan ...