'Anti christ' in the Bible

Little children, it is the last time; and as you heard that antichrist is coming, even now many have become anti-christs; whence we know that it is the last time.

Who is a liar but he that denies that Jesus is the Christ? This is the anti-christ, [the man that] denies the Father and the Son.

and every spirit which does not confess Jesus is not of God. And this is the [spirit] of anti-christ, of which you have heard that he is coming, and he is now in the world already.

For many deceivers have gone out into the world, who do not confess Jesus Christ coming in the flesh; this is the deceiver, and the antichrist.