2 Thessalonians 2:3

And then that lawless one will be revealed—whom the Lord Jesus will slay with the breath of His mouth and bring to an end by the appearance of His coming—

But the Spirit explicitly says that in later times some will fall away from the faith, paying attention to deceitful spirits and doctrines of demons,

and every spirit that does not confess Jesus is not from God. This is the spirit of the antichrist, of which you have heard that it is coming, and now it is already in the world.

And there was given to him a mouth speaking great boasts and blasphemies, and authority to act for forty-two months was given to him.