1 1 The Presbyter to the beloved Gaius whom I love in truth.
3 I rejoiced greatly when some of the brothers 2 came and testified to how truly you walk in the truth.
5 Beloved, you are faithful in all you do 3 for the brothers, especially for strangers;
6 they have testified to your love before the church. Please help them in a way worthy of God to continue their journey. 4
7 For they have set out for the sake of the Name 5 and are accepting nothing from the pagans.
10 Therefore, if I come, 7 I will draw attention to what he is doing, spreading evil nonsense about us. And not content with that, he will not receive the brothers, hindering those who wish to do so and expelling them from the church.
11 Beloved, do not imitate evil 8 but imitate good. Whoever does what is good is of God; whoever does what is evil has never seen God.
12 Demetrius 9 receives a good report from all, even from the truth itself. We give our testimonial as well, and you know our testimony is true.
15 Peace be with you. The friends greet you; greet the friends 10 there each by name.
1  Beloved Gaius: a frequent form of address for fellow Christians in New Testament epistolary literature.
2  The brothers: in this letter, the term may refer to Christians who have been missionaries and received hospitality from Gaius (3 John 1:5-6). Walk in the truth: the common Johannine term to describe Christian living; this description presents Gaius as following the teachings of the Presbyter in contrast to Diotrephes.
3  You are faithful in all you do: Gaius's aid to the missionaries is a manifestation of his true Christian faith.
4  Help them . . . to continue their journey: the Presbyter asks Gaius not only to continue to welcome the missionaries to his community but also to equip them for further travels.
5  The Name: of Jesus Christ (cf Acts 5:41; 1 John 2:12; 3:23; 5:13). Accepting nothing: not expecting support from the pagans to whom they preach the gospel, so that they will not be considered as beggars; they required support from other Christians; cf Paul's complaints to the Corinthians (1 Cor 9:3-12).
6  Who loves to dominate: the Presbyter does not deny Diotrephes' place as leader but indicates that his ambition may have caused him to disregard his letter and his influence.
7  If I come: the Presbyter may visit the community to challenge the actions of Diotrephes toward himself and the missionaries. Will not receive the brothers: Diotrephes may have been critical of the teachings of the Presbyter and sought to maintain doctrinal purity; cf 1 John 2:19 and 1:10-11.
8  Do not imitate evil: Gaius should not be influenced by the behavior of Diotrephes.
9  Demetrius: because of the fear of false teachers, Demetrius, perhaps the bearer of the letter, is provided with a recommendation from the Presbyter; cf 2 Cor 3:1; Romans 16:1. Even from the truth itself: this refers probably to the manner of Demetrius's life that testifies to his true belief; cf Gaius above (3 John 1:3).