Mark Batterson said this quote

We want a money-back guarantee before we take a step of obedience, but that eliminates faith from the equation. Sometimes we need to take a flying leap of faith.We need to step into the conflict without knowing if we can resolve it. We need to share our faith without knowing how our friends will react to it. We need to pray for a miracle without knowing how God will answer. We need to put ourselves in a situation that activates a spiritual gift we've never exercised before. And we need to go after a dream that is destined to fail without divine intervention.If we want to discover new lands, we've got to lose sight of the shore. We've got to leave the Land of Familiarity behind. We've got to sail past the predictable. And when we do, we develop a spiritual hunger for the unprecedented and lose our appetite for the habitual. We also get a taste of God's favor.