There are some funny rules about what you are allowed and not allowed to talk about in polite society. You can ask people how tall they are, reciting a basic fact about their body, but you can't ask what they weigh. We are ok talking about vertical dimensions but not horizontal dimensions. You can ask people what they do for a living, but you can't ask them how much of a living they are making.
This seems to apply doubly in the church and what we might here on Sunday. The idea of the pastor preaching on money, particularly the giving of said money, just seems distasteful at best and self-interested at worse. This isn't helped by jet-setting prosperity preachers often talking about the same thing. So it is easy to simply decide that there are other things to preach on, and just skip the passages and opportunities to talk about money. Or if we do talk about money, we try to make it as little as possible.
And this is a great shame, because that means the the Church either speaks wrongly or not at all about the real thing our culture is obsessed with, money. Our entire culture is built on acquiring stuff, and the prosperity preachers fit right in to that message. Theirs is, "Give to God so you can get the stuff you actually want: more stuff." That's what secular culture does, too, just with even less attention given to God. "Give to your company (your time, body, attention) so you can get the stuff you really want: more stuff."
Now, when the church does decide to speak on it, it can be framed in a couple different ways. It can say something to the effect of, "Well, you just gotta do it, and 10% is the number." Or it can say, "Well, God has been pretty gracious to you, and to show your gratitude you should give something, and maybe start at 10%." Both of these approaches miss the mark slightly.
What I am hoping to show you here out of 2 Corinthians 9 is a larger vision for your giving that gets at your heart. I'm hoping that after today you are not guilted into giving but awed into giving. Our main point today is: Your faith filled giving shows God's grace.