'Rulers' in the Bible

So David said to Joab and the leaders of the people, “Go, count Israel from Beersheba to Dan, and bring me their total, so that I may know it.”

Also to his son Shemaiah sons were born who ruled over the house of their father, for they were courageous men of ability.

Then the rulers of the fathers’ households, and leaders of the tribes of Israel, and the commanders of thousands and of hundreds, with the overseers of the king’s work, offered willingly