deceiveth them that dwell on the earth - the earthly-minded, but not the elect. Even a miracle is not enough to warrant belief in a professed revelation unless that revelation be in harmony with God’s already revealed will.
by the means of those miracles - rather as Greek, “on account of (because of; in consequence of) those miracles.”
which he had power to do - Greek, “which were given him to do.”
in the sight of the beast - “before him” (Rev 13:12).
which - A, B, and C read, “who”; marking, perhaps, a personal Antichrist.
had - So B and Andreas read. But A, C, and Vulgate read, “hath.”