The Lord answered Moses that he would now see what God would do to Pharaoh: by a strong hand Pharaoh would let them go, and even drive them out of his land. God spoke again and said that he is the Lord. He had appeared to Abraham, Isaac and Jacob as God Almighty, but by his name the Lord he had not made himself known to them. He recalled that he had established his covenant with them to give them the land of Canaan, and that he had heard the groaning of the enslaved Israelites and remembered his covenant.
God told Moses to say to Israel a series of promises: he would bring them out from under the burdens of Egypt, deliver them from slavery, redeem them with an outstretched arm and great acts of judgment, take them as his people and be their God. They would know that he is the Lord their God, and he would bring them to the land he swore to give to Abraham, Isaac and Jacob, as an inheritance. Moses spoke to the people, but they did not listen, because of their broken spirit and harsh slavery.
God again told Moses to speak to Pharaoh. Moses objected that if the people had not listened, much less would Pharaoh, since he was slow of lips. The Lord commanded Moses and Aaron to go to the Israelites and to Pharaoh to bring the people out of Egypt.
The text then gives the family line of the heads of the fathers' houses of Reuben, Simeon and Levi, stopping at Levi because Moses and Aaron descend from him. From Levi came Kohath, then Amram, and Amram married his father's sister Jochebed, who bore Aaron and Moses. The sons of Aaron and some descendants of Kohath and Aaron are also named. The chapter closes by identifying Moses and Aaron as the ones who spoke to Pharaoh to bring Israel out of Egypt, and by repeating Moses' objection about his lips.