The sermon centers on the biblical imperative to imitate godly behavior while rejecting those who promote evil, drawing from 3 John 9–15 to contrast harmful and godly examples. It highlights the danger of following individuals like Diotrephes, who prioritizes personal authority, rejects apostolic teaching, and excludes others from the church, illustrating how pride and self-seeking corrupt community life. In contrast, the passage commends Demetrius, whose life exemplifies integrity and receives universal testimony, embodying the kind of character worthy of imitation. The preacher emphasizes that true discipleship involves discernment—choosing to follow those who walk in truth and love, not those who disrupt unity through arrogance and malice. Ultimately, the message calls believers to intentional, Christ-centered imitation, grounded in Scripture and guided by spiritual wisdom.