'Leader' in the Bible

Then the king said to his servants, "Do you not realize that a great leader has fallen this day in Israel?

In the past, when Saul was our king, you were the real leader in Israel. The Lord said to you, 'You will shepherd my people Israel; you will rule over Israel.'"

David replied to Michal, "It was before the Lord! I was celebrating before the Lord, who chose me over your father and his entire family and appointed me as leader over the Lord's people Israel.

"So now, say this to my servant David: 'This is what the Lord of hosts says: I took you from the pasture and from your work as a shepherd to make you leader of my people Israel.

You rescue me from a hostile army; you preserve me as a leader of nations; people over whom I had no authority are now my subjects.