(Mic 5:2), another name for "families" or "clans" (see Nu 1:16; 10:4; Jos 22:14,21). Several "thousands" or "families" made up a "tribe."
These were the noted ones of the congregation, rulers of the tribes of their fathers, heads of thousands in Israel.
And if they blow with one, then the rulers who are heads of the thousands of Israel shall gather themselves to you.
and with him ten rulers, a ruler from each of the chief houses throughout all the tribes of Israel. And each one was a head of the house of their fathers among the thousands of Israel.
And the sons of Reuben and the sons of Gad and the half tribe of Manasseh answered and said to the heads of the thousands of Israel,
And you, Bethlehem Ephratah, you being least among the thousands of Judah, out of you He shall come forth to Me, to become Ruler in Israel, He whose goings forth have been from of old, from the days of eternity.