Jamieson, Fausset and Brown on Revelation 16:14

14. devils--Greek, "demons."

working miracles--Greek, "signs."

go forth unto--or "for," that is, to tempt them to the battle with Christ.

the kings of the earth and, &c.--A, B, Syriac, and Andreas omit "of the earth and," which clause is not in any manuscript. Translate, "kings of the whole habitable world," who are "of this world," in contrast to "the kings of (from) the East" (the sun-rising), Re 16:12, namely, the saints to whom Christ has appointed a kingdom, and who are "children of light." God, in permitting Satan's miracles, as in the case of the Egyptian magicians who were His instruments in hardening Pharaoh's heart, gives the reprobate up to judicial delusion preparatory to their destruction. As Aaron's rod was changed into a serpent, so were those of the Egyptian magicians. Aaron turned the water into blood; so did the magicians. Aaron brought up frogs; so did the magicians. With the frogs their power ceased. So this, or whatever is antitypical to it, will be the last effort of the dragon, beast, and false prophet.

battle--Greek, "war"; the final conflict for the kingship of the world described in Re 19:17-21.