1 John 2:21-23

21That is why I am writing to you. It is not because you do not yet know God's true message. I am writing to you because you do know that true message. And you can be sure that there are no lies in it.

22Who is the one who tells the worst lies? It is anyone who says that Jesus is not the Messiah. A person like that is the enemy of Christ. He is speaking against God, the Father, and against Jesus, his Son.

23Anyone who says that Jesus is not God's Son does not belong to the Father. But anyone who accepts Jesus as the Son of God also belongs to the Father.