'Families' in the Bible

These are the heads of their fathers houses. The sons of Reuben the first-born of Israel: Hanoch, and Pallu, Hezron, and Carmi; these are the families of Reuben.

And the sons of Simeon: Jemuel, and Jamin, and Ohad, and Jachin, and Zohar, and Shaul the son of a Canaanitish woman; these are the families of Simeon.

The sons of Gershon: Libni and Shimei, according to their families.

And the sons of Merari: Mahli and Mushi. These are the families of the Levites according to their generations.

And the sons of Korah: Assir, and Elkanah, and Abiasaph; these are the families of the Korahites.

And Eleazar Aaron's son took him one of the daughters of Putiel to wife; and she bare him Phinehas. These are the heads of the fathers houses of the Levites according to their families.

Then Moses called for all the elders of Israel, and said unto them, Draw out, and take you lambs according to your families, and kill the passover.