Deuteronomy 18:15-20, Mark 1:21-28
A little word history from the Online Etymology Dictionary:
Authority: First written appearance in English: 1230, autorite “book or quotation that settles an argument,” from from L. nom. auctoritas ,”invention, advice, opinion, influence, command,” from auctor “author.” Used to mean “power to enforce obedience” is from 1393; meaning “people in authority” is from 1611. Authoritative first recorded 1609. Authoritarian is recorded from 1879.
Power: First written appearance in English: 1297, from L. potis “powerful” Used to mean “a state or nation with regard to international authority or influence” dates from 1726. Powerful is c.1400. The powers that be is from Rom. 13:1. Read more