The Doctrine of christ.

[Eric Asante Obeng]

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: 2john1:9-10
what is the doctrine of Christ?

[Stanley N. Helton]

Eric,

In the context of this passage you cited, the doctrine (of/about/from/that is) Christ is the teaching that Jesus is God come in the flesh. Notice the singular in v. 10: "this" doctrine.

I know some who use this text to say "if you don't agree with me, I can't even eat with you." I hope that is now where you are going with this.

Stan