3 John is a deeply personal letter from the Apostle John to Gaius, whom he calls “beloved.” At the heart of the letter is John's joy that Gaius is “walking in the truth”; his faith was not merely something he professed but something demonstrated through his character, hospitality and service to God's people. John commends him for supporting travelling believers who were serving for the sake of Christ, showing that advancing the Gospel involves not only those who preach but also those who faithfully welcome, provide and serve. In contrast, John introduces Diotrephes, whose desire for prominence led him to reject God's people and oppose legitimate spiritual authority. Finally, John commends Demetrius, whose life had earned a good testimony from others and from the truth itself. Through these three men, the letter presents contrasting pictures of Christian character: Gaius serves, Diotrephes seeks himself, and Demetrius bears faithful witness. The central question is therefore not simply whether we know the truth, but whether our lives demonstrate that we are walking in it.
John opens by addressing “the beloved Gaius, whom I love in truth.” Once again, John brings together love and truth. His affection for Gaius is not merely sentimental; it is grounded in their shared relationship with Christ and the truth of the Gospel.
John then expresses his prayer that Gaius may “prosper in all things and be in good health, as it goes well with your soul.” This verse is sometimes isolated as though it were a promise that God guarantees physical health and material prosperity to every believer. But in context, John is simply expressing a personal prayer and desire for Gaius' wellbeing. What is particularly striking is the priority John gives to his spiritual condition: “as it goes well with your soul.” John's greatest joy is not that Gaius is successful, wealthy or physically well. It is that his soul is flourishing and that his life is aligned with the truth.
He says, “I have no greater joy than to hear that my children are walking in the truth.” For John, spiritual faithfulness is the deepest measure of success. There is something profoundly beautiful about seeing someone not merely come to know Christ but continue walking faithfully with Him.
This challenges our own definition of success. We can become preoccupied with achievement, career, financial progress, recognition or outward appearances, but Scripture repeatedly directs our attention to the condition of the soul. Are we walking in truth? Are we becoming more like Christ? Is our life producing evidence of what we say we believe?
For those who disciple, lead or mentor others, John's words also reveal something beautiful: there is no greater joy than seeing those entrusted to us continue faithfully with Christ. Spiritual fruitfulness is not merely about what we accomplish ourselves; it is also about seeing others grow in truth.
John then commends Gaius for something very practical: his hospitality toward travelling believers. These Christians were strangers to Gaius personally, yet he welcomed and supported them because they were serving “for the sake of the Name.” This is important because Gaius' ministry was not necessarily public or prominent. He was not the person travelling from place to place preaching. But his hospitality enabled those who were preaching to continue their work.
John therefore says that Gaius was “faithful” in what he was doing. Faithfulness is often expressed through ordinary acts that may never receive public recognition. Welcoming someone, providing a meal, giving financial support, opening our home, offering practical assistance or simply making room for someone else's calling can all become acts of service to Christ.
John says that these workers had gone out “for the sake of the Name” and were accepting nothing from the Gentiles. Because of this, believers like Gaius had a responsibility to support them so that they could continue their work. John concludes: “Therefore we ought to support people like these, that we may be fellow workers for the truth.”
That phrase is powerful: “fellow workers for the truth.” It means that ministry partnership extends beyond the person on the platform. The person preaching, the person giving, the person hosting, the person praying and the person practically serving can all participate in the same Gospel mission. This reminds us that there is no insignificant obedience when it is done for Christ. What we may consider a small act of hospitality or generosity can become part of something much larger because it helps advance the Gospel.
John then introduces a very different example: Diotrephes, a man who “likes to put himself first.” That single description reveals the root of his problem. His issue was not merely that he was difficult or had poor manners. His heart had become centred on himself. He wanted prominence, control and recognition, and this self-centredness affected how he treated God's people.
John says that Diotrephes did not acknowledge his authority, spoke wicked nonsense against them and refused to welcome the brothers. Worse, he prevented others from doing so and even put those who welcomed them out of the church.
What a serious warning this is for anyone who holds influence in Christian ministry. It is possible to occupy a position within the Church while becoming increasingly concerned with our position in the Church. We can begin with a desire to serve Christ and gradually become preoccupied with recognition, influence, control, reputation or being seen as important.
Diotrephes shows us what happens when ministry becomes centred on the minister rather than on Christ. Instead of using his influence to welcome God's people and advance the Gospel, he used it to protect his own position. This is a sobering question for every believer, but especially for anyone who serves or leads: Am I using what God has entrusted to me to serve people, or am I using people to build myself?
Christian leadership is fundamentally about stewardship. The people, opportunities, gifts and influence God gives us do not belong to us. They are entrusted to us for His purposes.
John then gives Gaius a direct instruction: “Beloved, do not imitate evil but imitate good.” This is particularly significant after describing Diotrephes. We are constantly exposed to examples of how to live, lead and relate to others. Some examples should be followed; others should serve as warnings.
John tells Gaius to imitate what is good because “whoever does good is from God; whoever does evil has not seen God.” Again, John connects our behaviour with our relationship with God. What we consistently practise reveals something about what is shaping our hearts.
This does not mean that every person who makes a mistake is therefore not a Christian. John's concern throughout his letters is the direction and pattern of life. The person who knows God should increasingly desire what is good because God's character is shaping them.
There is also wisdom here about choosing our examples. Not everyone who has a platform should automatically become a model for us. We should examine the fruit of people's lives. Their gifts may be impressive, their influence may be significant and their words may sound compelling, but character matters.
John essentially says: Do not merely imitate what is impressive; imitate what is godly.
John then introduces Demetrius, whose testimony stands in sharp contrast to Diotrephes. He says, “Demetrius has received a good testimony from everyone, and from the truth itself.” There is something powerful about a reputation that is confirmed by both people and truth. Demetrius did not simply claim to be faithful; his life had become a credible witness. John even adds, “We also add our testimony, and you know that our testimony is true.” His character was consistently recognised by those who knew him.
This gives us an important picture of Christian integrity. Our testimony should not depend entirely on what we say about ourselves. Ideally, there should be enough consistency between our confession and our conduct that other people can recognise the work of Christ in our lives. This does not mean that we live for people's approval. Rather, it means that our lives should be credible. The Gospel we proclaim should be visible in the character we display.
Demetrius reminds us that a good testimony is built over time through ordinary faithfulness. It is formed through the way we speak, serve, respond to difficulty, treat people, handle responsibility and conduct ourselves when nobody is watching.
John closes the letter much like he closed 2 John, explaining that although he has “many things to write,” he does not want to communicate everything with pen and ink. Instead, he hopes to see Gaius soon and speak “face to face.”
Again, this reminds us that Christian faith is relational. Letters, messages and teaching are valuable, but there is something special about personal fellowship among believers.
John desires to come not simply to correct problems but to share fellowship and joy. His closing words, “Peace be to you,” are especially meaningful after the conflict surrounding Diotrephes. The peace of Christ remains possible even when there are difficult people and difficult situations within the Church.
He then sends greetings to Gaius' friends and asks him to greet John's friends individually. This small detail reveals something beautiful about the Christian community: people matter individually. Christian ministry is not ultimately about crowds, platforms or numbers. It is about people whom God knows, loves and calls into fellowship with Himself and one another.
3 John gives us three contrasting pictures of what our lives can communicate about our relationship with Christ. Gaius walked in truth and expressed that truth through hospitality, generosity and service. Diotrephes allowed self-interest and the desire for prominence to shape his leadership. Demetrius lived in such a way that others could testify to the authenticity of his faith. The letter therefore reminds us that Christian maturity is not measured merely by what we know, what position we hold or how visible our ministry is. It is revealed through the way we walk, serve, lead and treat others. We may never stand on a platform, but we can support those who do. We may never receive recognition, but we can remain faithful. And whenever God gives us influence, we must guard against making ourselves the centre. Ultimately, the question 3 John places before us is simple but searching: Is my life helping people see Christ, or is it increasingly drawing attention to me?
💡Key Takeaway:
Walking in truth means allowing what we believe about Christ to become visible through faithful service, humble leadership, generous love and a life that consistently points beyond ourselves to Him.
🙏🏽 Prayer:
Father, thank You for the truth You have given me through Jesus Christ. Help me not merely to know Your truth but to walk in it faithfully. Make me like Gaius; generous, hospitable and willing to serve Your purposes even when no one sees or recognises it. Guard my heart from the spirit of Diotrephes, from pride, self-promotion, control and the desire to put myself first. Teach me to use every gift, opportunity and influence You have given me as a steward for Your glory. Help my life, like Demetrius' life, to carry a testimony that is consistent with the truth I profess. May those who encounter me see more of Christ and less of me. In Jesus' name, amen.