Miroslav Volf in “Free of Charge: Giving and Forgiving in a Culture Stripped of Grace. 

“Faith tells us that we do not exist simply to live our three score and ten years without pain, with ease and enjoyment, to accumulate possessions, power or knowledge, to receive accolades and enlarge our egos. How empty such a life would be! Faith is an expression of the fact that we exist so that the infinite God can dwell in us and work through us for the well-being of the whole creation. If faith denies anything, it denies that we are tiny, self-obsessed specks of matter who are reaching for the stars but remain hopelessly nailed to the earth stuck in our own self-absorption. Faith is the first part of the bridge from self-centeredness to generosity.”

the ministry will make you a far better or a far worse Christian than you would have been otherwise. But it will not leave you where you were! And it will put enormous pressure on your integrity and character. The key problem will be preaching the gospel while not believing the gospel. As ministers, we must be willing to admit that ministerial success often becomes the real basis for our joy and significance, much more so than the love and acceptance we have in Jesus Christ. Ministry success often becomes what we look to in order to measure our worth to others and our confidence before God. In other words, we look to ministry success to be for us what only Christ can be. All ministers who know themselves will be fighting this all their lives. It is the reason for jealousy, for comparing ourselves to other ministers, for needing to control people and programs in the church, and for feeling defensive toward criticism. At one level we believe the gospel that we are saved by grace not works, but at a deeper level we don’t believe it much at all. We are still trying to create our own righteousness through spiritual performance, albeit one that is sanctioned by our call to ministry

Tim Keller, Redeemer City to City Resource: Ministry and Character