The Old Baking Dish

A pastor was giving the message to his congregation one Sunday morning when he recounted the following story:
"My wife and I have this old baking dish that we picked up somewhere many years ago. It's a good quality baking dish, which is why we like it, but it's stained and doesn't look very nice. We've tried cleaning it with all sorts of products and chemicals, but the stains simply refuse to come off. So now we've given up. We'll still use it for baking, but not as much as we'd like to."
"One night we had some friends over for dinner. My wife had cooked so much food that we'd run out of...