What does 3 John 1:5 mean?

John called Gaius "beloved," or "dear friend," for a third time in this verse. John rarely uses the Greek word pistos, meaning "trusty or faithful," using it only here, in 1 John 1:9, and John 5:4. This is high praise from the apostle John. The efforts in question are Gaius's hospitality for fellow believers, even those who are strangers. Though Gaius didn't personally know them, he treated them like family. These traveling Christians spoke highly of him to John and to others (3 John 1:6). By this time, most (if not all) of the original apostles had died. John would have been the only one left. Traveling evangelists and teachers were taking on a greater role in bringing Christian teachings to new places. Gaius led an existing church, and was known to those who visited him as a great host and godly man.