Testimonies are great things about what the Lord has done for us, but no-one will be offended when you talk about what God has done for you. You need to be specific about sin, about Christ's death on the cross, about others' need for a saviour, and about their need to repent and trust in Christ.
Mark DeverI know a girl who has become a really enthusiastic Christian. I remember meeting her several years ago. She lived in a house near us. She was standing out the front smoking, not apparently interested in religious things, but she did have a respect for spiritual matters when I spoke to her. So as we talked, she expressed an interest, and began to come to church occasionally. Over the years, I have watched her come to Christ, be converted, baptized and changed in wonderful ways. It's a real joy to me when I see things like this.
Mark DeverFrom the time of Cain until the last believer before Christ's return, we are all fundamentally in the same boat. We suffer the same spiritual afflictions and tendencies.
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 DeverIndeed, some secularists are so worried about Christianity, they think Christians are about as dangerous as Muslim terrorists. They get really worried when we don't invest our lives in this-worldly concerns. They look on us as unpredictable free agents. When we reject their relativism and make absolutist spiritual claims, they look at us as nervously as they would a terrorist with a suicide bomb strapped to his back. Of course, Christians are not into coercion in any form. But it is very hard to persuade secularists of that.
Mark Dever