² tn L&N 56.1 has ‘if Demetrius and his workers have an accusation against someone, the courts are open’ Ac 19:38.”

³ sn Workmen in similar trades. In effect, Demetrius gathered the Ephesian chamber of commerce together to hear about the threat to their prosperity.

¹ sn Demetrius is apparently someone Gaius would have heard about, but whose character was not known to him. Thus the author is writing to Gaius to attest to Demetrius’ good character. It appears that Demetrius is coming to Gaius’ church and needs hospitality and assistance, so the author is writing to commend him to Gaius and vouch for him. It is difficult to know more about Demetrius with any certainty, but the author is willing to give him a powerful personal endorsement (We testify to him too). Demetrius may well have been the leader of a delegation of traveling missionaries, and may even have been the bearer of this letter to Gaius. The writing of letters of introduction to be carried along by representatives or missionaries in NT times is also attested in Paul’s writings (1 Cor 16:3).

¹ 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.

³ 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.

³ tn The meaning of the term לָבִיא (laviʾ) is debated. There are three basic approaches: (1) the noun “lioness,” (2) the Hiphil infinitive construct of בּוֹא (boʾ), “to bring,” shortened from לְהָבִיא (lehaviʾ) to לָבִיא (cf. Jer 39:7; 2 Chr 31:10) and (3) as לבוא, “to enter,” the Qal infinitive construct of בּוֹא (boʾ). The first option has the support of the consonantal text of the Dead Sea Scrolls in 4QpNah and Mur88. Most English versions render לָבִיא as “lioness,” the parallel term for אַרְיֵה (ʾaryeh, “lion”); so RSV, NASB, NIV, NJPS; in contrast, KJV has “old lion.” Indeed, the noun לָבִיא (“lioness” or “lion”; BDB 522 s.v. לָבִיא) occurs frequently in poetic texts (Gen 49:9; Num 23:24; 24:9; Deut 33:20; Isa 5:29; 30:6; Joel 1:6; Job 4:11; 38:39). However if lion and lioness are the subjects of the verb, one would expect the nouns to be joined by the conjunction vav (ו) and the verb to be plural rather than singular. The line, as is, would read “where lion prowled, lioness there cub of a lion”). Furthermore, the term for “lioness” differs in form in the following verse: לִבְאָה (livʾah; see HALOT 515 s.v. *לִבְאָה) not לָבִיא (laviʾ). The grammatical, syntactical, and lexical difficulties of the first approach have led several scholars to the second approach. Because the Hiphil of בּוֹא (boʾ) can depict an animal bringing food to its dependents (cf. 1 Kgs 17:6), they treat the line thus: “where the lion went to bring [food to his] lion cub” (Ehrlich, Haldar, Maier). While the picture of a male lion bringing food to its cubs seems odd zoologically, the next verse presents that exact picture clearly (it is a metaphor). The third approach involves a small change of the consonantal text, from י (yod) to ו (vav) and has the support of the LXX which renders τοῦ εἰσελθεῖν (tou eiselthein) “where the lion went to enter there.” The pesher of 4QpNah employs לבוא (laboʾ) and it is not clear whether this is a literal translation or creative word-play: “Its pesher concerns Demetrius, king of Greece, who sought to enter (לבוא) Jerusalem” (col. 1, line 4). The approach of the LXX is followed by the NRSV “where the lion goes, and the lion’s cubs, with no one to disturb them.”