Exodus 6:23-30 NCV

23 Aaron married Elisheba, the daughter of Amminadab and the sister of Nahshon. Elisheba gave birth to Nadab, Abihu, Eleazar, and Ithamar.
24 The sons of Korah were Assir, Elkanah, and Abiasaph. These are the family groups of the Korahites.
25 Eleazar son of Aaron married a daughter of Putiel, and she gave birth to Phinehas. These are the leaders of the family groups of the Levites.
26 This was the Aaron and Moses to whom the Lord said, "Lead the people of Israel out of Egypt by their divisions."
27 Aaron and Moses are the ones who talked to the king of Egypt and told him to let the Israelites leave Egypt.
28 The Lord spoke to Moses in the land of Egypt
29 and said, "I am the Lord. Tell the king of Egypt everything I tell you."
30 But Moses answered, "I am not a good speaker. The king will not listen to me."