New Testament · Letter

The Third Letter of John: Author, Context and Complete Study

Third John is a personal note from the elder to his friend Gaius. It praises Gaius for his hospitality to traveling missionaries, rebukes the ambitious Diotrephes for refusing them and commends Demetrius, calling believers to imitate what is good.

Updated on November 14, 2026

What is 3 John about?

Third John is about supporting those who serve the truth. The elder rejoices that Gaius is walking in the truth and thanks him for welcoming and helping traveling brothers who had gone out for the sake of the name, saying that believers ought to support such people and so become fellow workers for the truth (3 John 1:3-8). He then denounces Diotrephes, who loved to be first, rejected the elder's authority and expelled those who welcomed the missionaries (1:9-10). Finally he urges Gaius to imitate good, not evil, and commends Demetrius (1:11-12).

Author: The elder (3 John 1:1), traditionally the apostle John, who also wrote 1 and 2 John and the Gospel of John. Some scholars think of another early leader known as John the elder.
Date: c. AD 85-95, probably from Ephesus, around the same time as 1 and 2 John.
First readers: Gaius, a beloved believer in a church of the province of Asia, who welcomed traveling missionaries even though a local leader named Diotrephes refused to receive them.
Genre: Letter
Chapters: 1 chapter
Key verse: 3 John 1:8

Historical context

Third John comes from the same setting as 2 John: the churches of the Roman province of Asia in the last decades of the first century, where, according to early tradition, the apostle John lived in Ephesus as an aged leader. The gospel was carried from town to town by traveling preachers. Because inns were expensive and often had a bad reputation, these missionaries depended on believers for food, lodging and supplies for the next stage of the journey, and they refused to take support from the pagans they were trying to reach (1:7).

The elder had sent such workers out, and some had returned to report on how they were received (1:3, 6). Gaius had welcomed them generously. But in the church where Diotrephes held influence, the elder's letter had been ignored, and Diotrephes not only refused to receive the missionaries but stopped others from doing so and put them out of the church (1:9-10). The problem was not, as far as we can tell, a false doctrine, but a leader's love of power that closed the door to the mission.

Geographical context

The letter names no place, but tradition connects the elder with Ephesus, the leading city of the province of Asia, in western Asia Minor. Gaius probably lived in one of the towns of that region, close enough for the elder to plan a visit soon (1:14).

The geography of 3 John is that of the early mission: Roman roads linking the cities of Asia, along which missionaries walked with letters of recommendation, house churches that served as stations along the way, and congregations that could either open or close their doors. The brothers who went out for the sake of the name traveled through this network, and Demetrius may well have been the one who carried this letter to Gaius (1:12).

Why does the book of 3 John exist?

The elder writes to encourage Gaius and to prepare for a visit. Gaius was being faithful in a difficult situation: he kept welcoming the missionaries while an influential leader opposed them. The elder affirms his faithfulness, testifies that his love is known before the church, and asks him to keep sending the workers on their way in a manner worthy of God (1:5-6). Supporting them, he explains, is a way of taking part in their work, of becoming fellow workers for the truth (1:8).

The letter also deals with a leadership crisis. The elder names the problem openly: Diotrephes loves to be first, slanders the elder and abuses his position by expelling those who show hospitality (1:9-10). The elder does not answer with a long argument but promises to address it in person. Meanwhile he gives Gaius a simple rule: imitate what is good, not what is evil (1:11), and he commends Demetrius as a trustworthy brother (1:12). For the whole church, 3 John is a short but vivid lesson on generous hospitality, mission partnership and servant leadership.

Outline of 3 John

3 John 1:1-4
Greeting and joy over Gaius
The elder greets his beloved Gaius and prays that he may be well in body as he is in soul. Brothers have testified that Gaius walks in the truth, and the elder has no greater joy than to hear that his children walk in the truth.
3 John 1:5-8
Fellow workers for the truth
Gaius is faithful in what he does for the traveling brothers, even though they were strangers to him. The elder asks him to send them on their way in a manner worthy of God, since they went out for the name and accepted nothing from pagans.
3 John 1:9-10
The problem of Diotrephes
Diotrephes, who loves to be first, rejected what the elder wrote to the church. He spreads malicious words, refuses to welcome the brothers, stops those who want to and puts them out of the church; the elder will deal with it when he comes.
3 John 1:11-12
Imitate good: the example of Demetrius
Gaius should imitate good, not evil, because whoever does good is from God. Demetrius has a good testimony from everyone and from the truth itself, and the elder adds his own testimony.
3 John 1:13-15
Closing: soon face to face
The elder has much more to say, but not with pen and ink; he hopes to see Gaius soon and talk face to face. He wishes him peace and exchanges greetings between friends, each by name.

Famous passages in 3 John

3 John 1:2
Health of body and soul
The elder prays that all may go well with Gaius and that he may be in good health, just as his soul is doing well. Wishes for good health were a common opening in ancient letters, and the verse shows the elder's care for the whole person. It is sometimes used as a promise of wealth, which the context does not support.
Study 3 John 1 →
3 John 1:4
No greater joy
The elder says he has no greater joy than to hear that his children are walking in the truth. Spoken like a spiritual father, the verse is often quoted by parents, pastors and teachers, because it puts faithful living above every other success.
Study 3 John 1 →
3 John 1:5-8
Supporting those who go out for the name
Gaius had shown love to traveling brothers he did not know. The elder asks him to send them on in a way worthy of God, because they went out for the sake of the name and took nothing from pagans. Believers ought to support such people, and in doing so they become fellow workers for the truth, a classic text on supporting missionaries.
Study 3 John 1 →
3 John 1:9-10
Diotrephes, who loves to be first
Diotrephes rejected the elder's authority, spread malicious nonsense, refused to welcome the brothers and even expelled those who wanted to receive them. His name has become a byword for church leaders who love control and prominence, in contrast to Jesus' teaching that the greatest must be the servant of all.
Study 3 John 1 →
3 John 1:11
Imitate what is good
With Diotrephes as a negative example, the elder urges Gaius not to imitate evil but good. Whoever does good is from God, and whoever does evil has not seen God. The verse echoes the teaching of 1 John that the way a person lives reveals whether he truly knows God.
Study 3 John 1 →
3 John 1:12
The good testimony of Demetrius
Demetrius receives a threefold recommendation: from everyone, from the truth itself and from the elder, whose testimony Gaius knows to be true. He may have carried the letter, and the commendation would open Gaius's door to him. It shows how early churches vouched for trustworthy workers.
Study 3 John 1 →

Main themes

Walking in the truth: Truth is not only believed but walked in. Gaius's faithfulness was visible to others, and the elder's greatest joy is to hear that his spiritual children live in line with the truth (1:3-4). Even Demetrius is commended by the truth itself (1:12).
Hospitality and mission support: Welcoming and equipping traveling missionaries was essential to the spread of the gospel. Sending them on in a manner worthy of God meant providing food, lodging and supplies, and those who did so shared in their work as fellow workers for the truth (1:5-8).
Servant leadership: Diotrephes shows what leadership looks like when it seeks first place: rejecting accountability, speaking evil of others, excluding faithful workers and controlling the church (1:9-10). The letter implicitly calls leaders to the humility Jesus taught and modeled.
Imitating good: Believers learn by example. Gaius must choose whom to imitate: not Diotrephes, but those whose lives show that they are from God, like Demetrius. Doing good reveals a real knowledge of God, while doing evil shows that a person has not seen him (1:11-12).
Friendship in the church: The letter is warm and personal. Gaius is called beloved four times, the elder longs to see him face to face, and the closing greetings pass between friends, each greeted by name (1:1-2, 5, 11, 14-15). Fellowship in the truth creates real friendships.

Main characters

The elder: The author, a respected leader with spiritual children in several churches, traditionally the apostle John. He sends out missionaries, writes to churches and plans visits to deal with problems in person (1:1, 4, 9-10, 13-14).
Gaius: The beloved recipient, a believer known for walking in the truth and for generous hospitality to traveling brothers, even strangers. Gaius was a very common name, and there is no clear reason to identify him with the other men called Gaius in the New Testament (1:1-6).
Diotrephes: An influential church leader who loved to be first. He ignored the elder's letter, spread malicious talk, refused to welcome the missionaries and expelled those who did (1:9-10). He is the only person in the letter openly criticized.
Demetrius: A believer with a good testimony from everyone, from the truth itself and from the elder (1:12). He was probably the bearer of the letter or one of the missionaries Gaius was asked to receive.
The traveling brothers: Missionaries who went out for the sake of the name, refusing support from pagans. They had been helped by Gaius and reported his love to the church; Diotrephes turned them away (1:3, 5-7, 10).
The friends: The believers around the elder and around Gaius, who exchange greetings at the end. The elder asks Gaius to greet each of them by name, a small detail that shows the personal character of these early communities (1:15).

In-depth study of 3 John

Introduction

Third John is one of the most personal books of the New Testament. It is a private note from an elderly leader to a friend named Gaius, full of warmth, encouragement and a frank word about a troublesome church leader. It never names Jesus, contains no long argument and could be read aloud in a couple of minutes. Yet it opens a rare window into the everyday life of the early churches: missionaries walking from town to town, believers opening their homes, letters being sent and ignored, and leaders who could either serve the mission or block it.

The letter introduces three men. Gaius is the faithful host, Diotrephes the leader who loves first place and Demetrius the trustworthy brother. Through them the elder teaches a simple and lasting lesson: walking in the truth shows itself in generous support of those who serve the gospel, and believers must choose carefully whom they imitate.

Who wrote 3 John and when?

The elder again

Like 2 John, this letter comes from the elder (1:1), who expects his readers to know exactly who he is. The two letters are so similar in form and vocabulary that almost everyone agrees they come from the same author, and both share the language of 1 John and the Gospel of John: truth, love, testimony and the contrast between doing good and doing evil. Early Christian tradition identified the elder with the apostle John.

Questions about the author

Because Papias, an early second-century bishop, mentioned a John the elder alongside the apostles, some scholars think the author was a different John, a leader in Asia who was not one of the Twelve. Others believe Papias was referring to the apostle himself. The short, personal nature of the letter meant that it was accepted more slowly than 1 John, but it was received as Scripture and stands among the General Epistles.

The date

The letter is usually dated around AD 85-95, together with 1 and 2 John. Tradition says John spent his last years in Ephesus, so the letter was probably sent from there to Gaius in a nearby town. The elder's authority over several congregations and his plan to visit fit that picture.

Literary style and structure

A typical private letter

Third John follows the conventions of private letters of its time as closely as any New Testament book: a short address, a wish for the reader's health (1:2), an expression of joy, the main business, a note about a coming visit and greetings from friends. Many papyrus letters from Egypt have the same shape and length.

Contrasting portraits

The body of the letter is built on contrasting examples. Gaius walks in the truth and welcomes the brothers; Diotrephes loves first place and turns them away; Demetrius is commended by everyone. The command to imitate good, not evil (1:11), stands at the center, between the negative and positive portraits.

The flow of the letter

Greeting and joy over Gaius (1:1-4).
Praise for his hospitality to the missionaries (1:5-8).
The problem of Diotrephes (1:9-10).
Imitate good: the example of Demetrius (1:11-12).
Closing and greetings (1:13-15).

3 John in the story of the Bible

Hospitality runs through the whole Bible. Abraham ran to welcome three strangers and served them a meal (Genesis 18:1-8), and Hebrews recalls that some have entertained angels without knowing it (Hebrews 13:2). Jesus sent his disciples out depending on the welcome of others and said that whoever receives them receives him (Matthew 10:9-14, 40-42).

The early mission relied on this kind of support. The verb used for sending the brothers on their journey (1:6) is the same one Paul uses when he hopes the Romans will help him on his way to Spain (Romans 15:24) and when he asks Titus to speed Zenas and Apollos on their journey with everything they need (Titus 3:13). Like Paul, who worked so as not to be a burden (1 Thessalonians 2:9), these missionaries accepted nothing from pagans (1:7).

Diotrephes stands in contrast to the teaching of Jesus that the rulers of the nations lord it over others, but among his followers the greatest must be the servant of all (Mark 10:42-45). Peter likewise tells elders not to domineer over those in their charge (1 Peter 5:3). Third John is also the companion of 2 John: one letter warns against welcoming false teachers, the other praises welcoming true ones.

3 John and Jesus Christ

Third John is the only New Testament book that does not mention Jesus or Christ by name. Yet he is present throughout. The missionaries went out for the sake of the name (1:7), the same way Acts describes the apostles rejoicing that they were counted worthy to suffer for the name (Acts 5:41). In John's writings, the truth in which believers walk is bound up with Jesus, who called himself the way, the truth and the life (John 14:6).

The letter's teaching also reflects Christ's own words. Receiving his messengers is receiving him (Matthew 10:40). Leadership in his church means service, not first place (Mark 10:43-45). And the statement that whoever does good is from God, while whoever does evil has not seen God (1:11), echoes 1 John 3:6-10, where the life of those born of God shows the character of the Son they have come to know.

Interpretive challenges

Does 3 John 1:2 promise prosperity?

The elder prays that Gaius may prosper in every way and be in good health, as his soul prospers. Some have read this as a promise that faith brings wealth and health. But the verse is a prayer, written in the standard form of ancient letters, which often began with a wish for the recipient's health. It shows care for the whole person without promising material prosperity.

What letter did Diotrephes reject?

The elder says he wrote something to the church (1:9). Some think this was 2 John, which deals with hospitality, although it addresses the opposite problem. Others think of a letter that has not survived, perhaps a recommendation of the missionaries. The text does not say.

Was Diotrephes a false teacher?

The elder accuses Diotrephes of pride, slander and abuse of authority, but not of false doctrine. Some suggest he may have been reacting against traveling teachers after bad experiences, or asserting the independence of his congregation. Others see simple ambition. What is clear is that his behavior denied the love that the truth requires.

Little-known facts

No mention of Jesus by name. Third John is the only New Testament book that does not use the name Jesus or the title Christ; it speaks instead of the name (1:7).
The shortest book in Greek words. With roughly 220 Greek words, 3 John is the shortest book of the Bible, though 2 John has fewer verses.
Church in John's writings. The word church appears three times in 3 John (1:6, 9, 10) but never in the Gospel of John or in 1 and 2 John.
A unique word for ambition. The expression for Diotrephes, one who loves to be first, translates a Greek verb found nowhere else in the New Testament. His Greek name means nourished by Zeus.
Fourteen or fifteen verses. The King James Version numbers 3 John in 14 verses, while most modern Bibles divide the last verse into two and count 15.

How to study 3 John

Read it as a real letter

Read 3 John aloud and imagine Gaius receiving it from Demetrius. Then read it again with 2 John beside it and note what is similar and what is different. Look for the three portraits and ask what each one teaches about faithfulness, leadership and hospitality.

Questions to ask

What does walking in the truth look like in Gaius's life?
How can our church send missionaries and Christian workers on their way in a manner worthy of God?
What attitudes in Diotrephes do we need to watch for in ourselves?
Whom are we imitating, and who might be imitating us?

Teaching it in a class or small group

Third John works well in one session, or as the second half of a study with 2 John. Begin by describing the world of traveling missionaries and house churches. Then study the three men one by one. Close with a practical step, such as praying for and writing to a missionary the group knows, or offering hospitality to someone serving the church, so that the group becomes fellow workers for the truth (1:8).

3 John chapter by chapter

Every chapter of 3 John with a summary, key verses explained, themes, people, questions with answers and application.

Frequently asked questions about 3 John

Who wrote 3 John?

The author calls himself the elder (3 John 1:1), as in 2 John. Early tradition identified him with the apostle John, and the letter shares the language of John's other writings, such as walking in the truth, testimony and the contrast between doing good and doing evil. Some scholars, based on a statement by Papias, think the elder was a different John, but many interpreters accept the traditional view.

When was 3 John written?

It was probably written around AD 85-95, at about the same time as 1 and 2 John, near the end of John's life. Early tradition places John in Ephesus in those years, so the letter was likely sent from there to Gaius, who lived in a nearby town of the province of Asia. The letter itself gives no date.

What is the main message of 3 John?

Believers should support those who serve the gospel. By welcoming and helping traveling missionaries, Gaius became a fellow worker for the truth. In contrast, Diotrephes, who loved to be first, closed the church's door to them. The elder urges Gaius to imitate what is good, because whoever does good is from God (3 John 1:8, 11).

How many chapters does 3 John have and how is it organized?

Third John has a single chapter. Most modern Bibles divide it into 15 verses, while some older translations, such as the King James Version, number 14. It follows the form of a personal letter: greeting and joy over Gaius (1:1-4), praise for his hospitality (1:5-8), the problem of Diotrephes (1:9-10), the example of Demetrius (1:11-12) and a closing with greetings (1:13-15).

Who was Gaius in 3 John?

Gaius was a believer the elder loved and trusted, known for walking in the truth and for welcoming traveling missionaries (3 John 1:1-6). The name was one of the most common in the Roman world, and the New Testament mentions other men called Gaius in Macedonia, Derbe and Corinth (Acts 19:29; 20:4; Romans 16:23). There is no clear evidence that any of them is the Gaius of this letter.

Who was Diotrephes and what did he do wrong?

Diotrephes was a leader in a local church who, in the elder's words, loved to be first among them (3 John 1:9). He rejected the elder's letter and authority, spread malicious accusations, refused to welcome the traveling brothers and expelled church members who wanted to receive them (1:10). The letter does not accuse him of false doctrine; his sin was pride and the abuse of power.

Does 3 John 1:2 promise health and wealth?

No. The verse is a prayer, not a promise: the elder wishes that all may go well with Gaius and that he may be in good health, just as his soul is well. Ancient letters commonly began with a wish for the reader's health. The verse shows genuine care for a friend's body as well as his soul, but it does not teach that faith guarantees prosperity or physical health.

How is 3 John related to 2 John?

The two letters are like twins: same author, similar length, similar opening and closing, the same joy over children walking in the truth and the same hope of talking face to face (2 John 1:4, 12; 3 John 1:4, 13-14). But they deal with opposite sides of hospitality: 2 John warns against welcoming false teachers, while 3 John praises welcoming true ones.