2 John 1:7; 2 John 1:10

2 John 1:7

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

2 John 1:10

10 If anyone comes to you and does not bring this teaching, do not receive him into your house, and do not give him a greeting;