Leah's sons were Reuben (Jacob's firstborn), Simeon, Levi, Judah, Issachar, and Zebulun. Rachel's sons were Joseph and Benjamin. The sons of Rachel's slave Bilhah were Dan and Naphtali. read more.
The sons of Leah's slave Zilpah were Gad and Asher. These are the sons of Jacob, who were born to him in Paddan-aram.

Exodus 1:5

The total number of Jacob’s descendants was 70;

Joseph was already in Egypt.

Verse Concepts

Exodus 6:14-27

These are the heads of their fathers' families: The sons of Reuben, the firstborn of Israel: Hanoch and Pallu, Hezron and Carmi. These are the clans of Reuben. The sons of Simeon: Jemuel, Jamin, Ohad, Jachin, Zohar, and Shaul, the son of a Canaanite woman. These are the clans of Simeon. These are the names of the sons of Levi according to their genealogy: Gershon, Kohath, and Merari. Levi lived 137 years. read more.
The sons of Gershon: Libni and Shimei, by their clans. The sons of Kohath: Amram, Izhar, Hebron, and Uzziel. Kohath lived 133 years. The sons of Merari: Mahli and Mushi. These are the clans of the Levites according to their genealogy. Amram married his father's sister Jochebed, and she bore him Aaron and Moses. Amram lived 137 years. The sons of Izhar: Korah, Nepheg, and Zichri. The sons of Uzziel: Mishael, Elzaphan, and Sithri. Aaron married Elisheba, daughter of Amminadab and sister of Nahshon. She bore him Nadab and Abihu, Eleazar and Ithamar. The sons of Korah: Assir, Elkanah, and Abiasaph. These are the clans of the Korahites. Aaron's son Eleazar married one of the daughters of Putiel and she bore him Phinehas. These are the heads of the Levite families by their clans. It was this Aaron and Moses whom the Lord told, "Bring the Israelites out of the land of Egypt according to their divisions." Moses and Aaron were the ones who spoke to Pharaoh king of Egypt in order to bring the Israelites out of Egypt.