Passage
(who have witnessed of thy love before [the] assembly,) in setting forward whom on their journey worthily of God, thou wilt do well;
(who have witnessed of thy love before [the] assembly,) in setting forward whom on their journey worthily of God, thou wilt do well;
3 John 1:4 I have no greater joy than these things that I hear of my children walking in the truth.
3 John 1:5 Beloved, thou doest faithfully [in] whatever thou mayest have wrought towards the brethren and that strangers,
3 John 1:6 (who have witnessed of thy love before [the] assembly,) in setting forward whom on their journey worthily of God, thou wilt do well;
3 John 1:7 for for the name have they gone forth, taking nothing of those of the nations.
3 John 1:8 *We* therefore ought to receive such, that we may be fellow-workers with the truth.
The verse centers on "witnessed", "love", "before", "assembly", "setting", "forward", "journey", and "worthily". It is saying that the verse draws attention to "witnessed" and "love", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 5's "Beloved thou doest faithfully in whatever thou..." into verse 7's "for for the name have they gone...", so "witnessed" and "love" 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 "witnessed" and "love" with trust shaped by these words, not by a vague optimism outside the passage.