In this episode, we come to one of the harshest statements in the letter, in which John advises his readers to not even let the secessionists into their homes. By this, he probably means to not let them participate in their house churches, so as not to give them a platform for their false ideas about Jesus. But can we draw such hard lines in a way that still embodies a gospel of love? We’ll begin exploring that question using the concept of bounded versus centered sets.