 Because they listen carefully. And besides that, you know what? It isn't what they fully understand at six and seven and eight. It's getting it in their mind, their heart, and the Spirit of God's got something to work with. And the Spirit of God can work in things in your mind and heart years after you have heard them. Then, of course, there's the whole issue of doubt. Well, now, wait a minute. I know that's what God says, but, well, what's the cause of your doubt? Is it because you're looking around to see what other people are doing?