I've come to learn that theology matters. It matters not because we want to impress people, but because what we know about God shapes the way we think and live. Theology matters because if we get it wrong then our whole life will be wrong.
You are so amazed by grace, you're not picking a fight with anyone, you're just crying tears of amazement that should lead to a heart for lost people, that God does indeed save, when he doesn't have to save anybody.
God gave people 2 ears and 1 mouth because He wants us to listen twice as much as we talk.
You get up and you preach a sermon and people walk away thinking what a great guy - and that's a failure as a pastor. Our job is to proclaim Christ.