You have to push on both pedals to make the wheels go 'round. Similarly, you need faith in Christ as well as knowledge. The problem is that there are always Christians who want to push one pedal - either knowledge or experience. We need both.
Mark DeverWe need to be realistic and recognize that there will be times when we won't be sharing our faith out of an overwhelming sense of joy. When that happens, that's a call to look at our own devotional lives. Are we putting our hearts and minds before the Lord and under his cross everyday? Do we remind ourselves continually that we have been ransomed by the death of the Saviour? When we meditate on Christ's death for us, it doesn't mean that we never have struggles in our obedience, but it does help.
Mark DeverPride causes us to care more about what our non-Christian friends think of us than what God will do to them in their sin.
Mark DeverWe are called to love others. We share the gospel because we love people. And we don't share the gospel because we don't love people. Instead, we wrongly fear them. We don't want to cause awkwardness. We want their respect, and after all, we figure, if we try to share the gospel with them, we'll look foolish! And so we are quiet. We protect our pride at the cost of their souls. In the name of not wanting to look weird, we are content to be complicit in their being lost.
Mark DeverLet's say that you want to do everything out of the joy that comes from knowing the Lord. Well, a lot of people aren't built like that emotionally. If they think that some sort of feeling is the basis for their action, they are going to feel justified sitting around, although they are going to feel bad that they have never taken one step of obedience because their heart is cold.
Mark Dever