Chapter 1 (Only one chapter in this Epistle)
This is a personal letter, to a lady with her children.
John stressed on the importance of TRUTH. This reminds me of a Rev. David Chen, who sort of scorned at the importance of truth.
Love one another in truth. Such is the commandment.
If however, this love is tested by those who do not have the right doctrine, we do not receive such into our house or send them greetings. v.10