3 John 1:7

“Because that for his name's sake they went forth, etc] From Judea; either of their own accord to preach the Gospel, or being drove out by the unbelieving Jews, for professing the name of Christ; and be it which it will, there was good reason why they should be regarded, and especially since they did as follows, taking nothing of the Gentiles; even of those who were converted, though their preaching the Gospel, to whom they ministered, for of others, the unconverted Gentiles, they could not expect to receive; and this they did, as the apostles before them, because they would not be chargeable to them, and lest it should be thought they sought their own worldly interest, and not the good of…”

“his name's sake--Christ's. went forth--as missionaries. taking nothing--refusing to receive aught by way of pay, or maintenance, though justly entitled to it, as Paul at Corinth and at Thessalonica. Gentiles--the Christians just gathered out by their labors from among the heathen. As Gaius himself was a Gentile convert, "the Gentiles" here must mean the converts just made from the heathen, the Gentiles to whom they had gone forth. It would have been inexpedient to have taken aught (the Greek "meden" implies, not that they got nothing, though they had desired it, but that it was of their own choice they took nothing) from the infant churches among the heathen: the case was different in…”

“Because that for his name’s sake - The word “his” here refers to God; and the idea is, that they had undertaken this journey not on their own account, but in the cause of religion. They went forth - Or, “they have gone forth” - ἐξῆλθον exēlthon - referring to the journey which they had then undertaken; not to the former one. Taking nothing of the Gentiles - The term “Gentile” embraced all who were not “Jews,” and it is evident that these persons went forth particularly to labor among the pagan. When they went, they resolved, it seems, to receive no part of their support from them, but to depend upon the aid of their Christian brethren, and, hence, they were at first commended to the…”

“They went forth - To preach the gospel. 3 John 1:8”

“1:7-8 for the Lord (literally on behalf of the Name): John did not need to identify whose name this was because all the early Christians knew that the Name represented Jesus Christ (see Acts 5:41). • The traveling teachers had chosen to accept nothing offered to them from people who are not believers, but to rely fully on the churches for their support. Christians who support legitimate traveling teachers become their partners as they teach the truth (see Matt 10:41-42; Phil 4:15-19).”

“that: Act 8:4, Act 9:16; Co2 4:5; Col 1:24; Rev 2:3 taking: Kg2 5:15, Kg2 5:16, Kg2 5:20-27; Co1 9:12-15, Co1 9:18; Co2 11:7-9, Co2 12:13 3 John 1:8”