'Adversary' in the Bible

I have known thy works, and tribulation, and poverty -- yet thou art rich -- and the evil-speaking of those saying themselves to be Jews, and are not, but are a synagogue of the Adversary.

I have known thy works, and where thou dost dwell -- where the throne of the Adversary is -- and thou dost hold fast my name, and thou didst not deny my faith, even in the days in which Antipas was my faithful witness, who was put to death beside you, where the Adversary doth dwell.

'And to you I say, and to the rest who are in Thyatira, as many as have not this teaching, and who did not know the depths of the Adversary, as they say; I will not put upon you other burden;

lo, I make of the synagogue of the Adversary those saying themselves to be Jews, and are not, but do lie; lo, I will make them that they may come and bow before thy feet, and may know that I loved thee.

and the great dragon was cast forth -- the old serpent, who is called 'Devil,' and 'the Adversary,' who is leading astray the whole world -- he was cast forth to the earth, and his messengers were cast forth with him.

and he laid hold on the dragon, the old serpent, who is Devil and Adversary, and did bind him a thousand years,

And when the thousand years may be finished, the Adversary shall be loosed out of his prison,