(Okay, apparently I have more thoughts about the idiom “preaching to the choir” than I first realized. My dad’s a minister and I spent a lot of Sundays counting the beams in the ceiling. Anyway.)
Even if the choir is convinced, they still have to sit through the sermon.
The preacher’s done when the sermon’s finished. Some don’t watch the clock, some are quite precise in timing their sermons. Some have very clear formats, some are ‘moved by the spirit’, so to speak.
You might think you know where the sermon’s going, but the preacher can always throw something at you that makes you think or feel differently. The sermon may not end the way you expected, or it may change your feelings. Or neither.
You might be really bored and take a nap, hoping you don’t snore. The preacher’s not going to stop talking because you can’t stay awake… the rest of the congregation’s still there expecting a sermon.
…so, ”Preaching to the convinced.” Even if you’re convinced, they’re still offering proof.
Featured as slightly different aspects of ‘the convinced’:
The Larries: everything’s already sketchy, the “birth certificate” just makes it look even more shady. So If you were trying to convince us this isn’t real, you’re doing a great job.
The Freddies (? I don’t even know): B’s baby is real, and Louis is the father, and the birth certificate is further proof. So there. Shh, don’t talk to us about things that don’t add up.
Harry and Louis: Yes, this has gone on a long time. We hear you, tumblr. Don’t even need to tell us again to end it because we’re past ready ourselves.
The sermon’s not finished yet, is it? It’s all going to get wrapped up somehow and then, according to the bulletin, everyone gets to stand up and sing again.