Brief Summary: 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.
Muhtasari kwa kifupi: Yohana anaandika kwa msisitizo wake wa kawaida wa nguvu juu ya ukweli kwa huyu ndugu mpendwa sana katika Kristo, Gayo, mlei/asiye mtaalamu aliye na mali kiasi na mamlaka katika mji uliokuwa karibu na Efeso. Anamsifu sana huduma na ukarimu wa Gayo kwa wajumbe wake ambao misheni yao ilikuwa kuchukua Injili kutoka sehemu moja hadi nyingine, iwapo walijulikana kwake au walikuwa wageni. Yohana anamhimiza kuendelea kutenda mema na asiige mabaya, kama katika mfano wa Diotrefe. Mtu huyu alikuwa amenyakua uongozi wa kanisa katika Asia na si tu alikataa kutambua mamlaka ya Yohana kama mtume lakini pia kupokea barua yake na kuwasilisha kwa maelekezo yake.