The Third Letter of John is a brief, personal message written by “the elder” (likely the Apostle John) to a respected Christian leader named Gaius. Its main purpose is to commend Gaius for his exemplary faithfulness and his generous hospitality towards traveling Christian missionaries, encouraging him to continue supporting those who spread God’s truth. The letter also sharply contrasts Gaius’s good conduct with the disruptive behavior of a man named Diotrephes, who is criticized for his proud ambition, his refusal to acknowledge the elder’s authority, his malicious gossip, and his unwelcoming attitude towards fellow believers and missionaries. In addition, the elder praises another individual, Demetrius, for his excellent reputation. The overall theme emphasizes the importance of practical love and support for Christian workers, warning against pride and divisiveness within the church community.
