(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 renowned of the congregation, princes of the tribes of their fathers, captains of the thousands of Israel.
But when they blow only one, then the princes, who are heads of the thousands of Israel, shall gather themselves unto thee.
and with him ten princes, of each chief house a prince throughout all the tribes of Israel; and each one was the head of the house of their fathers among the thousands of Israel.
Then the sons of Reuben and the sons of Gad and the half tribe of Manasseh answered and said unto the heads of the thousands of Israel,
But thou, Bethlehem Ephratah, though thou be little among the thousands of Judah, yet out of thee shall he come forth unto me that is to be Lord in Israel; and his goings forth are from the beginning, from the days of the ages.