For many deceivers are entered into the world, who confess not that Jesus Christ has come in the flesh. This is a deceiver and an antichrist. Look to yourselves, that we lose not those things which we have worked for, but that we receive a full reward. Whoever goes beyond, and abides not in the doctrine of Christ, has not God. He that abides in the doctrine of Christ, he has both the Father and the Son. If there come any unto you, and bring not this doctrine, receive him not into your house, neither bid him God speed: For he that bids him God speed is partaker of his evil deeds. (2 John 1:7-11)