'Families' in the Bible

So I stationed people at the lower places behind the wall in the exposed places. I stationed the people by families, with their swords, spears, and bows.

When I had made an inspection, I stood up and said to the nobles, the officials, and the rest of the people, "Don't be afraid of them. Remember the great and awesome Lord, and fight on behalf of your brothers, your sons, your daughters, your wives, and your families!"

"We -- the priests, the Levites, and the people -- have cast lots concerning the wood offerings, to bring them to the temple of our God according to our families at the designated times year by year to burn on the altar of the LORD our God, as is written in the law.

and his colleagues who were heads of families -- 242; and Amashsai son of Azarel, the son of Ahzai, the son of Meshillemoth, the son of Immer,

In the days of Joiakim, these were the priests who were leaders of the families: of Seraiah, Meraiah; of Jeremiah, Hananiah;

As for the Levites, in the days of Eliashib, Joiada, Johanan and Jaddua the heads of families were recorded, as were the priests during the reign of Darius the Persian.

The descendants of Levi were recorded in the Book of the Chronicles as heads of families up to the days of Johanan son of Eliashib.