Vs. 5, “Dear friend, you are faithful in what you are doing for the brothers and sisters, even though they are strangers to you.” Gaius was commended for doing what Diotrephes was not; giving hospitality. This is why it was so important to know the truth, for Diotrephes swung on the other pendulum by completely refusing to show hospitality. Gaius is a wonderful example for us as we consider someone who stood up against opposition and did what was best. John writes to send encouragement since he was not able to come right away and deal with Diotrephes. John also points out that Demetrius was another wonderful example to look to. In this letter, we see the importance of Godly pastoral authority.
Regarding application…Addressing Conflict. Vs. 11, “Dear friend, do not imitate what is evil but what is good. Anyone who does what is good is from God. Anyone who does what is evil has not seen God.” I appreciate how John does not ignore the situation. Rather, he firmly addresses it and will come soon to handle such conflict. Having just used Diotrephes as the bad example, John now commends Demetrius. Perhaps you have had experiences of a “Diotrephes” in your own church. I completely believe that Godly leadership should have the confidence and wisdom to address such conflicts in the church. And if you are not in a leadership position be like Gaius and Demetrius who chose to do good rather than evil towards others.