Probably the most common objection to evangelism today is, "Isn't it wrong to impose our beliefs on others?"
Some people don't practice evangelism because they feel they are imposing on others. And the way evangelism is often done, I can understand the confusion! But when you understand what the Bible presents as evangelism, it's really not a matter of imposing your beliefs.
It's important to understand that the message you are sharing is not merely an opinion but a fact. That's why sharing the gospel can't be called an imposition, any more than a pilot can impose his belief on all his passengers that the runway is here and not there.
Additionally, the truths of the gospel are not yours, in the sense that they uniquely pertain to you or your perspective or experience, or in the sense that you came up with them. When you evangelize, you are not merely saying, "This is how I like to think of God," or "This is how I see it." You're presenting the Christian gospel. You didn't invent it, and you have no authority to alter it.
One of the classic testimonies was given by a blind man Jesus healed. When he was questioned after Jesus healed him, he responded, "Whether he [Jesus] is a sinner or not, I don't know. One thing I do know. I was blind but now I see!" (John 9:25). The man disregarded the menacing threats of those more honored and respected than he in order to give this verbal witness to the power of God. It's a wonderful, powerful testimony, but it's not evangelism. There is no gospel in it. The man didn't even know who Jesus was.
An account of a changed life is wonderful and inspiring thing, but it's the gospel of Jesus Christ that explains what it's all about and how it happened.
Social Action and Public Involvement
Being involved in mercy ministries may help to commend the gospel, which is why Jesus taught, "Let your light shine before men, that they may see your good deeds and praise your Father in heaven" (Matt. 5:16). Displaying God's compassion and kindness by our actions is a good and appropriate thing for Christians to do. But such actions are not evangelism. They commend the gospel, but they share it with no one. To be evangelism, the gospel must be clearly communicated, whether in written or oral form.
When our eyes fall from God to humanity, social ills replace sin, horizontal problems replace the fundamental vertical problem between us and God, winning elections eclipses winning souls.
Other people mistake apologetics for evangelism. Like the activities we've considered above, apologetics itself is a good thing. We are instructed by Peter to be ready to give a reason for the hope that we have (1 Pet. 3:15). And apologetics is doing exactly that. Apologetics is answering questions and objections people may have about God or Christ, or about the Bible or the message of the gospel.
Answering questions and defending parts of the good news may often be a part of conversations Christians have with non-Christians, and while that may have been a part of our own reading or thinking or talking as we came to Christ, such activity is not evangelism.
Apologetics can present wonderful opportunities for evangelism. Being willing to engage in conversations about where we came from or what's wrong with this world can be a significant way to introduce honest discussions about the gospel.
By far the greatest danger in apologetics is being distracted from the main message. Evangelism is not defending the virgin birth or defending the historicity of the resurrection. Apologetics is defending the faith, answering the questions others have about Christianity. It is responding to the agenda that others set. Evangelism, however, is following Christ's agenda, the news about him. Evangelism is the positive act of telling the good news about Jesus Christ and the way of salvation through him.
The Results of Evangelism
Finally, one of the most common and dangerous mistakes in evangelism is to misinterpret the results of evangelism—the conversion of unbelievers—for evangelism itself, which is the simple telling of the gospel message. Who can deny that much modern evangelism has become emotionally manipulative, seeking simply to cause a momentary decision of the sinner's will, yet neglecting the biblical idea that conversion is the result of the supernatural, gracious act of God toward the sinner?
When we are involved in a program in which converts are quickly counted, decisions are more likely pressed, and evangelism is gauged by its immediately obvious effect, we are involved in undermining real evangelism and real churches.
The Christian call to evangelism is a call not simply to persuade people to make decisions but rather to proclaim to them the good news of salvation in Christ, to call them to repentance, and to give God the glory for regeneration and conversion. We don't fail in our evangelism if we faithfully tell the gospel to someone who is not converted; we fail only if we don't faithfully tell the gospel at all. Evangelism itself isn't converting people; it's telling them that they need to be converted and telling them how they can be.
Mark Dever (From Christianity Today)