'Family' in the Bible

The land will mourn, every family by itself; the [royal] family of the house of David by itself and their wives by themselves; the family of the house of Nathan [David’s son] by itself and their wives by themselves;

the [priestly] family of the house of Levi by itself and their wives by themselves; the family of Shimei [grandson of Levi] by itself and their wives by themselves;

If the family of Egypt does not go up [to Jerusalem] and present themselves, then no rain will fall on them. It will be the plague with which the Lord will strike the nations who do not go up to celebrate the Feast of Booths (Tabernacles).