Passage
The elder unto Gaius the beloved, whom I love in truth.
The elder unto Gaius the beloved, whom I love in truth.
3 John 1:1 The elder unto Gaius the beloved, whom I love in truth.
3 John 1:2 Beloved, I pray that in all things thou mayest prosper and be in health, even as thy soul prospereth.
3 John 1:3 For I rejoiced greatly, when brethren came and bare witness unto thy truth, even as thou walkest in truth.
The verse centers on "elder", "gaius", "beloved", and "truth". It is saying that the verse draws attention to "elder" and "gaius", so its meaning should be read from those terms before moving to application.
The next verse adds "Beloved I pray that in all things...", so "elder" and "gaius" should be read forward into that movement. In 3 John context, the local focus is Christ, faith, and discipleship.
A plain takeaway is to answer the verse's own emphasis on "elder" and "gaius" with trust shaped by these words, not by a vague optimism outside the passage.