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
Yisra'el journeyed, and spread his tent beyond the tower of `Eder.
22
It happened, while Yisra'el lived in that land, that Re'uven went and lay with Bilhah, his father's concubine, and Yisra'el heard of it. Now the sons of Ya`akov were twelve.
23
The sons of Le'ah: Re'uven (Ya`akov's firstborn), Shim`on, Levi, Yehudah, Yissakhar, and Zevulun.