Exodus 6:18

“And the sons of Kohath, Amram, and Izhar, and Hebron, and Uzziel, etc.] So they are reckoned in (<130618>1 Chronicles 6:18) though only the family of the Hebronites are mentioned in (<042658>Numbers 26:58) and the years of the life of Kohath were one hundred and thirty three years. A Jewish chronologer says f179 he died one hundred years before the going out of Egypt: just the same number of years is ascribed to him by Polyhistor from Demetrius, an Heathen historian f180.”

“6:18 The descendants (literally sons) of Kohath included Amram, Izhar, Hebron, and Uzziel: The Hebrew word for “sons” can also mean “descendants,” which accommodates the possibility of unnamed generations.”

“sons: Num 3:19, Izehar, Num 26:57; Ch1 6:2, Ch1 6:18 and the years: Exo 6:16 Exodus 6:19”