Passage
Beloved, thou doest faithfully whatsoever thou doest to the brethren, and to strangers;
Beloved, thou doest faithfully whatsoever thou doest to the brethren, and to strangers;
3 John 1:3 For I rejoiced greatly, when the brethren came and testified of the truth that is in thee, even as thou walkest in the truth.
3 John 1:4 I have no greater joy than to hear that my children walk in truth.
3 John 1:5 Beloved, thou doest faithfully whatsoever thou doest to the brethren, and to strangers;
3 John 1:6 Which have borne witness of thy charity before the church: whom if thou bring forward on their journey after a godly sort, thou shalt do well:
3 John 1:7 Because that for his name’s sake they went forth, taking nothing of the Gentiles.
The verse centers on "faith", "beloved", "thou", "doest", "faithfully", "whatsoever", and "brethren". It is saying that the verse draws attention to "faith" and "beloved", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 4's "I have no greater joy than to..." into verse 6's "Which have borne witness of thy charity...", so "faith" and "beloved" belong inside that flow. In 3 John context, the local focus is Christ, faith, and discipleship.
A plain takeaway is to answer the verse's own emphasis on "faith" and "beloved" with trust shaped by these words, not by a vague optimism outside the passage.