Authorities – Spiritual Beings that Carry Blessings or Iniquities/Curses
Eph 6:12 For we do not wrestle against flesh and blood, but against principalities, against powers [exosia], against the rulers of the darkness of this age, against spiritual hosts of wickedness in the heavenly places
Authority – Webster – Exert energy, force, might. The power of sway or controlling influence over others.
Authority – (Greek) – Ardnt and Gingrich, Greek-English Lexicon – Exosia (Greek) – Authority as a freedom of choice, right to act, or decide. It is the ability to do something, capability, might, power to indicate the thing that is to be done.
Dictionary of New Testament Theology: Authority —
The lawful right of action and unrestrictive possibility or freedom of action.
Powers – Spiritual Beings that are electro-magnetic
Rom 8:38 For I am convinced that neither death nor life, neither angels nor demons, neither the present nor the future, nor any powers [dynamis]…
Strong: dunamis (doo’-nam-is) force (literally or figuratively); specially, miraculous power (usually by implication, a miracle itself):
KJV— ability, abundance, meaning, might (-ily, -y, -y deed), (worker of) miracle (-s), power, strength, violence, mighty (wonderful) work.
Hebrews 4:12 For the word of God is living and powerful, and sharper than any two-edged sword, piercing even to the division of soul and spirit, and of joints and marrow, and is a discerner of the thoughts and intents of the heart.
Galatians 5:6 For in Christ Jesus neither circumcision nor uncircumcision avails anything, but faith working [energeo] through love.
energeo (ἐνεργέω, 1754), “to put forth power, be operative, to work” (its usual meaning), is rendered by the verb “to work effectually,” or “to be effectual,” in the kjv of 2 Cor. 1:6; Gal. 2:8 and 1 Thess. 2:13; in each case the rv translates it by the simple verb “to work” (past tense, “wrought”). In Jas. 5:16 the rv omits the superfluous word “effectual,” and translates the sentence “the supplication of a righteous man availeth much in its working,” the verb being in the present participial form. Here the meaning may be “in its inworking,” i.e., in the effect produced in the praying man, bringing him into line with the will of God, as in the case of Elijah.
 Vine, W. E., Unger, M. F., & White, W., Jr. (1996). Vine’s Complete Expository Dictionary of Old and New Testament Words (Vol. 2, p. 194). Nashville, TN: T. Nelson.