1 John 4:3

“For many will come in My name, saying, ‘I am the Christ,’ and will deceive many.

Therefore I make known to you that no one speaking by the Spirit of God says, “Jesus is accursed,” and no one can say, “Jesus is Lord,” except by the Holy Spirit.

Children, it is the last hour; and just as you heard that antichrist is coming, even now many antichrists have appeared. From this we know that it is the last hour.

Who is the liar but the one who denies that Jesus is the Christ? This is the antichrist, the one who denies the Father and the Son.

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