John is writing with his usual strong emphasis on truth to this much-loved brother in Christ, Gaius, a layman of some wealth and distinction in a city near Ephesus. He highly commends Gaius’ care and hospitality to his messengers whose mission was to take the Gospel from place to place, whether they were known to him or were strangers. John exhorts him to continue to to do good and not to imitate evil, as in the example of Diotrephes. This man had taken over the leadership of a church in Asia and not only refused to recognize John’s authority as an apostle but also refused to receive his letters and submit to his directions. He also circulated malicious slanders against John and excommunicated members who showed support and hospitality to John’s messengers. Before John concludes his letter, he also commends the example of Demetrius, of whom he has heard excellent reports.
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The Book of 3 John Summary