A good sermon introduction grabs attention. Done right, hearers simply cannot turn away. I'll admit it. My sermon introductions don't always catch that much attention. But I want them to.
Many preachers spend the bulk of their preparation time working on the main body of their sermons.
That's reasonable, since the substance lies there. But that substance is only good if it registers a hit on their hearers' attention. I'll be first to say that some of it is art. But some is also science. Let's talk about that part.