¹ tn The word “From” is not in the Greek text, but has been supplied to indicate the sender of the letter.

² tn Or “presbyter.”

sn The author’s self-designation, the elder, is in keeping with the reticence of the author of the Gospel of John to identify himself. This is the same self-designation used by the author of 2 John.

³ sn Little reliable information is available concerning the identity of the person to whom 3 John is addressed. Because the name Gaius was very common in the Roman Empire, it is highly unlikely that the person named here is to be identified with any of the others of the same name associated with Paul (1 Cor 1:14, Rom 16:23 [these two references are probably to the same person]; Acts 19:29, Acts 20:4). A 4th century tradition recorded in the Apostolic Constitutions 7.46.9 (ca. a.d. 370) states that John the Apostle ordained Gaius as bishop of Pergamum, but this is questionable because of the relatively late date. The only certain information about this individual must be obtained from 3 John itself, and there is not a great deal there. It is obvious that this person is well known to the author, but it is not so certain whether they had met personally or not, because the report of Gaius’ conduct toward the brothers is received secondhand by the author (v. 3). Nor can it be determined with certainty whether Gaius belonged to the same local church as Diotrephes (v. 9), or was himself the leader of another local congregation. It is clear that the author regarded him as orthodox (v. 3) and a valuable ally in the controversy with the secessionist opponents and their false Christology discussed at length in 1 John.

⁴ tn The prepositional phrase ἐν ἀληθείᾳ (en alhqeia) in 3 John 1 is similar to 2 John 1, although it is not qualified here as it is there (see 2 John 1). This is not merely the equivalent of an adverb (“truly”), but is a theological statement affirming the orthodoxy of Gaius, to whom the letter is addressed. “Truth” is the author’s way of alluding to theological orthodoxy in the face of the challenge by the opponents (see 1 John 3:19).

⁵ tn The noun ψυχή (yuch) is used 10 times in the Gospel of John and 2 times in 1 John; of these 6 of the uses in John and both in 1 John refer to a person’s “life” (as something that can be laid down). In John 10:24 and 12:27 the ψυχή is that part of a person where emotions are experienced; one’s ψυχή is held in suspense or deeply troubled. This is, in other words, the immaterial part of a person as opposed to his physical existence. A close parallel is found in Philo, Heir 58 (285): “nourished with peace, he will depart, having gained a calm, unclouded life…welfare in the body, welfare in the soul (ψυχή)…health and strength…delight in virtues.”

sn Just as it is well with your soul. The equivalent contemporary idiom would be to speak of ‘spiritual’ health as opposed to physical health. The author affirms that Gaius is indeed well off spiritually, and he prays that Gaius’ physical health would match his spiritual health, i.e., that Gaius would be as well off physically as he is spiritually. It is the spiritual health which is to be the standard by which one’s physical health is measured, not the other way round.

⁶ tn The author has already described Gaius as “dear friend” or “beloved” (τῷ ἀγαπητῷ, tw agaphtw) in v. 1; he will address Gaius in the same way in vv. 5 and 11 (᾿Αγαπητέ, Agaphte). This is a term of endearment and personal warmth, much as it is when used by the author as an address in 1 John 2:7.

⁷ tn BDAG 821 s.v. πιστός 1.b offers the translation “act loyally” for this context, a usage which is not common but does fit well here. Since the author is going to ask Gaius for additional help for these missionaries in the following verse, he begins here by commending Gaius for all that he has already done in this regard.

sn When the author tells Gaius “you demonstrate faithfulness by whatever you do” he is commending him for his faithful service to the traveling missionaries (the brothers). Gaius has assisted them, and they have now returned with a report of this to the author (3 John 3).

⁸ sn The exhortation do not imitate what is bad but what is good is clearly a reference to Diotrephes’ evil behavior. The author exhorts Gaius (whom he wishes to continue assisting the missionaries) not to follow the negative example of Diotrephes, but to do what is right. Implicitly there may be a contrast between the bad behavior of Diotrephes and the good reputation of Demetrius (mentioned in the following verse); but it seems more likely that Demetrius is himself one of the traveling missionaries (perhaps their leader), rather than the leader of a local congregation who, unlike Diotrephes, has supported the missionaries himself.

⁹ sn The statement The one who does what is bad has not seen God is asyndetic; its abrupt introduction adds emphasis. The statement reiterates the common Johannine theme of behavior as an indication of genuine faith, found in 1 John in 3:6, 10; 4:7, 20; and in the Gospel of John in 3:17-21. By implication, the genuineness of Diotrephes’ faith is called into question, because he has obviously done what is bad (v. 11b; cf. vv. 9-10). In John’s terminology it is clear that the phrase has not seen God is equivalent to “is not a genuine Christian” (see John 3:17-21 and 1 John 3:6, 10; 4:7, 20).