Genesis 35:23 in the King James Version
The sons of Leah; Reuben, Jacob’s firstborn, and Simeon, and Levi, and Judah, and Issachar, and Zebulun:
Context
22 While Israel lived in that land, Reuben went and lay with Bilhah, his father’s concubine, and Israel heard of it. Now the sons of Jacob were twelve.
23 The sons of Leah: Reuben (Jacob’s firstborn), Simeon, Levi, Judah, Issachar, and Zebulun.
24 The sons of Rachel: Joseph and Benjamin.