¹ 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.

² sn Living according to the truth (Grk “walking in [the] truth”). The use of the Greek verb περιπατέω (peripatew) to refer to conduct or lifestyle is common in the NT (see 1 John 1:6, 2 John 4, as well as numerous times in Paul. Here the phrase refers to conduct that results when a person has “truth” residing within, and possibly alludes to the indwelling Spirit of Truth (see 2 John 2). In the specific context of 3 John the phrase refers to true Christians who are holding fast to an apostolic Christology in the face of the secessionist opponents’ challenge to orthodoxy.

³ tn Grk “who” (a relative pronoun that continues the sentence begun in 3 John 5).

⁴ sn Which church does the author refer to here? The church where Gaius is, the church where the author is, a different local church where the “brothers” are, or the ‘universal’ church, the church at large? Since the suggestion in 3 John 3 is that the “brothers” have come and testified in the author’s church about what Gaius has done for them, it seems most likely that the “church” mentioned here is also the author’s church, where he is currently located. Other possibilities cannot be ruled out, but seem unnecessarily complicated.

⁵ sn Now the author, after commending Gaius for his faithful service to the traveling missionaries in the past (see 3 John 5), now requests additional assistance at the present time (send them on their way in a manner worthy of God). Apparently the missionaries are on their way to visit the area where Gaius’ church is located a second time. They had been there once already and had returned with a good report of how Gaius had assisted them. It is entirely possible that they themselves carry with them the present letter as a letter of introduction. Along these lines it has been suggested that Demetrius (see 3 John 12) is one of these traveling missionaries, perhaps the leader of the delegation, and the author is formally introducing him to Gaius, since when he was there the last time he was a stranger (v. 5) but Gaius assisted him anyway.