I was talking to someone recently about evangelism. He said that he had talked to a pastor who had studied this out and found that door-to-door, the cold call, was the sixth best way of evangelism. The pastor had gone to some sales classes and took what he learned and developed a formula of how to locate the best contacts and then how to keep them warm until they finally are saved. The formula required a certain number of connections with the contact, including a specific number of visits. In the end, more people would be converted if the formula was followed.
As he was talking to me, my mind was wandering to scripture and the whole point of evangelism. Let me give you my formula. Preach it to everyone. Get the gospel to as many people as possible. Go to everyone to bring the gospel, so that no one is missed. That is what I see in Scripture. It is all I see in the Bible. I should love the people I'm preaching to. I should want them to be saved. I should want to live in accordance with the God about Whom I'm preaching, so that my testimony won't hinder the meaning of the Words I'm proclaiming. I can't talk them into it though. I can't warm them into it. The gospel is going to do everything for the salvation to occur. I don't have any special love for door-to-door. I see the example of it in scripture. I don't believe there is any more effective way for people to be saved than just preaching it.
My theology is repulsed by the conversation represented by the first paragraph. I hear the words being said and I can't wrap my brain around them. Why? Salvation is a supernatural work of God. Salvation comes from the gospel. The gospel is a message from the Bible. The salvation doesn't come from human effort. It is not by the will of man. I believe these types of formulas just confuse that issue. They make the salvation of souls about the wisdom of men.
I don't know who will want to hear the gospel and who will not. My responsibility is to preach it. If I preach the gospel to everyone, I have fulfilled my role in the work of salvation. When I don't preach it, I don't complete that responsibility.