 All believers are supposed to function within the local church and within the body of Christ. And that's chapter 4. And also into chapter 5. And it talks about our relationship in chapter 5 with each other in the body. Our families, our friends, our employers, everybody. And then, of course, it's interesting because then it transitions after that in chapter 6. It transitions into, okay, now you've been equipped. You have all this truth.