If you think that the gospel is all about what we can do, that the practice of it is optional, and that conversion is simply something that anyone can choose at any time, then I'm concerned that you'll think of evangelism as nothing more than a sales job where the prospect is to be won over to sign on the dotted line by praying a prayer, followed by an assurance that he is the proud owner of salvation.
Mark DeverMost people are glad for somebody else to share their own story of how they have found spiritual help. The problems start when you begin to universalize your story - when your narrative becomes authoritative and begins affecting their lives as well.
Mark DeverWe are all called to have faith. So all of us are called to evangelize, while some are specially gifted for this ministry.
Mark DeverSome believers are faithful in the way that they live, but at the end of the day, they will not share the gospel with as many people as someone else who has special gifts from God.
Mark DeverI think we have to realize that God sometimes gives us more time to pray, and when he does this, we can pray that he will bless those who have opportunities to speak to others.
Mark DeverIt's fine to deal with people's doubts and explain why they have good reasons to believe in Christ. But until we tell them the good news of Jesus Christ, we haven't done our job. They need a saviour that God has provided them in Christ. Once they know that, we can do as much apologetics as we need to.
Mark Dever