Quote from The Gospel-Centered Ministry by Tim Keller
"Isn’t that amazing? The gospel is not the ABC’s of Christianity, it’s A to Z. It’s not just the elementary and introductory truths. The gospel is what drives everything that we do. The gospel is pretty much the solution to every problem. The gospel is what every theological category should be expounding when we do our systematic theology. It should be very much a part of everything."
And I also love this quote, "If you are only getting punched in the mouth, or if you are only getting praise, you are not living the gospel life."