The difference between apologetics and evangelism is that in apologetics, you are answering objections that the world raises, whereas in evangelism, you are bringing the message that Christ brought. So unbelievers tend to set the agenda in apologetics, and you set the agenda in evangelism.
Mark DeverSuffering can serve us. Suffering tests our trust in God's promises. And we have a great interest in knowing the truth about our trust in Him.
Mark Dever