'Families' in the Bible

And Saul said, Am I not a man of Benjamin, the smallest of all the tribes of Israel? and my family the least of the families of Benjamin? why then do you say these words to me?

Then he made the tribe of Benjamin come near by families, and the family of the Matrites was taken: and from them, Saul, the son of Kish, was taken: but when they went in search of him he was nowhere to be seen.

So take care to get knowledge of all the secret places where he is taking cover, and be certain to come back to me, and I will go with you: and without doubt, if he is anywhere in the land, I will get him, among all the families of Judah.