'Anti christ' in the Bible

Little children, it is the last hour. Just as you heard that an antichrist is coming, so now many antichrists have appeared. This is how we know it is the last hour.

Who is a liar but the person who denies that Jesus is the Messiah? The person who denies the Father and the Son is an antichrist.

But every spirit who does not acknowledge Jesus is not from God. This is the spirit of the antichrist. You have heard that he is coming, and now he is already in the world.

For many deceivers have gone out into the world. They refuse to acknowledge Jesus the Messiah as having become human. Any such person is a deceiver and an antichrist.