AUTHOR The Third Letter of John begins, “The elder to Gaius the beloved, whom I love in truth.” As with 2 John, the author of this letter identifies himself simply as “the elder”. There is both internal evidence and external evidence that leads scholars to associate this letter with 1 John and 2 John as well as with the Gospel of John and Revelation. The internal evidence consists of a common language. As we saw in 1 John and 2 John, love and truth were dominant topics. So also, here in 3 John, those topics are introduced from the get-go. Pastor David Jackman summarizes the external evidence for the authorship of this letter… From the earliest times the letter has been attributed to John the apostle, but not without debate. The early evidence is sparse, though the Muratorian Canon, a fragmentary list of New Testament books known at Rome about AD 200, certainly includes the first two letters. Irenaeus, bishop of Lyons (c. 175—c. 195), quote...