The sons of Leah Jacob's first wife, which are six, and are reckoned in order, according to their birth, Reuben, Simeon, Levi, Judah, Issachar, Zebulun.
21
Jacob moved on and set up his camp on the other side of the tower of Eder.
22
While Jacob was living in that land, Reuben had sexual intercourse with Bilhah, one of his father's concubines; Jacob heard about it and was furious. Jacob had twelve sons.
23
The sons of Leah were Reuben (Jacob's oldest son), Simeon, Levi, Judah, Issachar, and Zebulun.