Genesis 35:22-24 New Living Translation (NLT)
22 While he was living there, Reuben had intercourse with Bilhah, his father’s concubine, and Jacob soon heard about it.
These are the names of the twelve sons of Jacob:
23 The sons of Leah were Reuben (Jacob’s oldest son), Simeon, Levi, Judah, Issachar, and Zebulun.
24 The sons of Rachel were Joseph and Benjamin.