Doctrine of False Teachers
Stained glass at St John the Baptist's Anglican Church http://www.stjohnsashfield.org.au, Ashfield, New South Wales. Illustrates Jesus' description of himself "I am the Good Shepherd" (from the Gospel of John, chapter 10, verse 11). This version of the image shows the detail of his face. The memorial window is also captioned: "To the Glory of God and in Loving Memory of William Wright. Died 6th November, 1932. Aged 70 Yrs." (Photo credit: Wikipedia)
Doctrine of the False Teachers 2 John 7-9
For many deceivers have gone out into the world who do not confess Jesus Christ as coming in the flesh. This is a deceiver and an antichrist.
Look to yourselves, that we do not lose those things we worked for, but that we may receive a full reward.
Whoever transgresses and does not abide in the doctrine of Christ does not have God. He who abides in the doctrine of Christ has both the Father and the Son.
Avoid the False Teachers 2 John 10-11
If anyone comes to you and does not bring this doctrine, do not receive him into your house nor greet him;
for he who greets him shares in his evil deeds.