It'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 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 DeverI do want to pray for the Lord to glorify himself and, yes, I also will pray for an outpouring of his Spirit, but I also will rejoice in what he is doing now, and I will try to be a faithful steward of the gospel by preaching it "in season and out of season", as Paul reminds us. So I want to be careful not to make an idol out of revival, or to rely upon it to the point where I don't plan for evangelism.
Mark DeverIf 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 Dever