The story
- Ancient Greek · derived fromαἱ οὖσαι ἐξουσίαι“the existing authorities”
- English todaypowers that be
After Romans 13:1 in the Tyndale Bible and the King James Version. The phrase is a translation of the Ancient Greek αἱ οὖσαι ἐξουσίαι (hai oûsai exousíai, “the existing authorities”). The verb be is the archaic third-person plural present indicative form, equivalent to the modern are, and not a subjunctive.
Etymology from Wiktionary, CC BY-SA 4.0.