3 JOHN 1 — GAIUS THE HOSPITABLE, DIOTREPHES THE DOMINEERING, AND DEMETRIUS THE WELL REPORTED

Third John is the shortest book in the New Testament by number of Greek words, and it is the only one of the Johannine letters addressed to a named individual. Like 2 John, it comes from "the elder," who is best identified as the apostle John in his old age, living in Ephesus or nearby and overseeing the churches of the region in the late first century. Together, 2 John and 3 John present complementary pictures of the same problem: how a church should treat traveling Christian workers. In 2 John, the warning is not to support false teachers. In 3 John, the warning is not to refuse true ones. Both letters are about the proper use of hospitality in the service of the truth. In the first-century church, itinerant missionaries, teachers, and prophets traveled from congregation to congregation, depending on the generosity of local believers for food, lodging, and help for the next stage of their journey. This system was crucial for the spread of the gospel, since the apostles and their co-workers moved constantly, and it was vulnerable to abuse by both false teachers and local leaders who refused to cooperate. The letter reveals a conflict inside a local church: a man named Diotrephes has seized control and is rejecting the authority of the elder and the traveling brothers whom he sent. Gaius, in contrast, has been generous and faithful. The letter praises Gaius, condemns Diotrephes, and commends a third man, Demetrius, who is probably the bearer of the letter. It is a window into the realities of early church life, including its conflicts, and it shows that even in the apostolic period, the church faced problems of pride and power.

Third John offers a rare glimpse of the day-to-day life of a first-century church, and for this reason it has been valued by historians. The picture of itinerant missionaries traveling between churches and depending on hospitality matches the picture in other sources, such as Acts, Paul's letters, and the Didache. It shows that the Christian movement spread through networks of personal relationships and mutual support. This network was an important factor in the growth of the church, and it allowed for the rapid circulation of letters, the sharing of resources, and the maintenance of unity across distances. The emphasis on hospitality for strangers was distinctive in a world in which inns were often unsafe and associated with immorality, and in which most travelers depended on personal connections. Christians offered a ready-made network of homes where believers could be received. This is one reason why Christianity spread so widely. The letter's opening wish for health and prosperity follows the form of Greek letters from the period. Papyrus letters found in Egypt often begin with a prayer to the gods for the health of the recipient, using phrases close to those that John uses. This confirms that the letter is authentic to its setting, and it helps to prevent misinterpretation of the verse as a doctrinal statement. The letter's frank portrayal of conflict in the church also adds to the credibility of the New Testament. A movement that was inventing a flattering history would not likely include an account of an apostle being rejected by a local leader. The book was slower to gain acceptance because of its brevity and private character: Eusebius lists it among the disputed writings, and it was not included in the earliest Syriac Bible, but it was widely accepted by the fourth century, and Jerome and Augustine recognized it. The preservation of such a small personal letter, written to a private individual, is evidence of the esteem in which the apostolic writings were held, since the church treasured even the briefest messages of the apostles.