'Adversary' in the Bible

And Jesus answering him said, 'Get thee behind me, Adversary, for it hath been written, Thou shalt bow before the Lord thy God, and Him only thou shalt serve.'

and he said to them, 'I was beholding the Adversary, as lightning from the heaven having fallen;

and if also the Adversary against himself was divided, how shall his kingdom be made to stand? for ye say, by Beelzeboul is my casting forth the demons.

and this one, being a daughter of Abraham, whom the Adversary bound, lo, eighteen years, did it not behove to be loosed from this bond on the sabbath-day?'

And the Adversary entered into Judas, who is surnamed Iscariot, being of the number of the twelve,

And the Lord said, 'Simon, Simon, lo, the Adversary did ask you for himself to sift as the wheat,