As in all of John’s writings, truth is a central concept in 3 John. He mentions it six times in these thirteen verses, plus the world “true” in verse 12. As we’ve seen, John’s greatest joy was to hear of his spiritual children walking in the truth. Why did the aged apostle hammer on the truth so often? One reason was that he was the last living apostle, and he saw numerous errors creeping into the churches. Also, the Lord Jesus had repeatedly emphasized the truth in His earthly ministry.