In 3 John, the Apostle John writes to his dear friend Gaius, commending him for walking in the truth and showing hospitality to fellow believers. Gaius’s faithfulness in serving others, even strangers, demonstrates his commitment to living out the Gospel through both truth and love. John emphasizes that walking in the truth is not just about knowledge but must be accompanied by active love and service, especially through hospitality, which honors God.

John contrasts Gaius’s example with that of Diotrephes, a man in the church who seeks power and causes division. Diotrephes rejects the truth, spreads malicious rumors, and refuses to show hospitality to others, placing himself above the needs of the community. John warns against following such bad examples and encourages Gaius to continue imitating what is good, as seen in the life of Demetrius, who is known for his integrity and alignment with the truth.

The central message of the letter is John’s call to “imitate good, not evil.” He reminds believers that doing good reflects a life transformed by God, while doing evil shows a disconnect from knowing God. Our actions are a testament to our relationship with God, and we are called to live lives of truth, love, and humility, imitating Christ and those who model His character.