KJVWho is a liar but he that denieth that Jesus is the Christ?...

KJV

Who is a liar but he that denieth that Jesus is the Christ?
He is antichrist, that denieth the Father and the Son
1 John 2.22

1 John 4

King James Version

4 Beloved, believe not every spirit, but try the spirits whether they are of God: because many false prophets are gone out into the world.

2 Hereby know ye the Spirit of God: Every spirit that confesseth that Jesus Christ is come in the flesh is of God:

3 And every spirit that confesseth not that Jesus Christ is come in the flesh is not of God: and this is that spirit of antichrist, whereof ye have heard that it should come; and even now already is it in the world.