We close out our Summer Shorts series with two of the Bible's shortest books, Second John and Third John, and they share one surprising theme: hospitality. John writes to a church navigating a world full of false teachers, people who denied that Jesus came in the flesh, and his message is both urgent and practical. Christians are called to be unreasonably inhospitable to lies and unreasonably hospitable to the truth. We dig into what that looks like today, when the front door knocking at our hearts is less often a traveling preacher and more often a screen, a feed, or a worldview quietly asking to move in. The call is not to fear or to build a Christian bubble, but to stand guard, pay attention, and be intentional about what we welcome into our homes and hearts. And at the center of it all is the greatest irony: Jesus himself endured the ultimate inhospitality from the world so that we could be fully and completely welcomed into his home.