'Authority' in the Bible

Then the five men departed, and came to Laish, and saw the people that were therein, how they dwelt in security, after the manner of the Sidonians, quiet and secure; for there was none in the land, possessing authority, that might put them to shame in anything, and they were far from the Sidonians, and had no dealings with any man.

And when Samuel saw Saul, Jehovah said unto him, Behold, the man of whom I spake to thee! this same shall have authority over my people.

Then Esther the queen, the daughter of Abihail, and Mordecai the Jew, wrote with all authority to confirm this second letter of Purim.