'Wonders' in the Bible

And he doeth great wonders, so that he maketh fire come down from heaven on the earth in the sight of men,

for they are [actually] the spirits of demons, performing [miraculous] signs. And they go out to the kings of the entire inhabited earth, to gather them together for the war of the great day of God, the Almighty.

And the beast (Antichrist) was seized and overpowered, and with him the false prophet who, in his presence, had performed [amazing] signs by which he deceived those who had received the mark of the beast and those who worshiped his image; these two were hurled alive into the lake of fire which blazes with brimstone.