This adjective describes one who loves strangers (philos "loving" + xenos "stranger/guest"). In the ancient world, where inns were scarce and often disreputable, hospitality was essential for travelers, especially for itinerant Christian missionaries and teachers. Hospitality wasn't just politeness but a moral and religious duty, demonstrating love in action. All three New Testament uses appear in qualification lists for church leaders or general Christian character, showing that welcoming strangers is a mark of mature Christian leadership and discipleship.