1 John 4:3
And every spirit that confesseth not that Jesus Christ is come in the flesh, is not of God. And the same is that spirit of antichrist, of whom ye have heard, how that he should come: and even now already is he in the world.
1 John 2:18
Little children it is now the last time, and as ye have heard how that antichrist shall come: even now are there many antichrists come already, whereby we know that it is the last time.
1 John 2:22
Who is a liar, but he that denieth that Jesus is Christ? The same is the antichrist that denieth the father and the son.
2 John 1:7
For many deceivers are entered into the world, which confess not Jesus Christ as coming, or returning in the flesh. This is a deceiver and an antichrist.
2 Thessalonians 2:3-8
Let no man deceive you by any means, for the Lord cometh not, except there come a departing first, and that that sinful man be opened, the son of perdition;