There are 7427 blatant absurdities in the bible. Among them:
2 John 1:9 Whosoever transgresseth, and abideth not in the doctrine of Christ, hath not God. He that abideth in the doctrine of Christ, he hath both the Father and the Son.10 If there come any unto you, and bring not this doctrine, receive him not into your house, neither bid him God speed:11 For he that biddeth him God speed is partaker of his evil deeds.
Do not allow anyone into your house who is not a fellow believer.