'Families' in the Bible

Hear the word of the Lord, O house of Jacob, and all the families of the house of Israel.

“At that time,” says the Lord, “I will be the God of all the families of Israel, and they shall be My people.”

“Have you not noticed what this people have spoken, saying, ‘The two families [Israel the northern kingdom, and Judah the southern kingdom] which the Lord chose, He has rejected’? Thus they despise My [chosen] people, no longer are they [considered] as a nation in their sight.