If 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.

We may be sinking in the North Atlantic in the most famous ship disaster of all time, but God can still use us to reach out and save others through our witness.

Sadly, there are some fine Christian people who believe that the only way to advance the gospel is to pray for revival and nothing else. You don't know if they have any non-Christian friends or if they have ever shared the gospel with anybody in the last 30 years. It's depressing going to prayer meetings like that. I don't want to pray like that.

Every believer should evangelize. I know some Christians think that evangelism is only for people with special gifts for it, but I don't believe the New Testament teaches that. While Paul does say that some believers have the call to be evangelists, all of us have the responsibility of evangelism.

Most 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.

The more you come to know the Bible - both in reading it extensively and also meditating on it deeply - the more integrated your understanding of all of life will be. And this means that there will be fewer steps between what you are doing at work and sharing your faith in Christ.

According to the New Testament, the church is primarily a body of people who profess and give evidence that they have been saved by God's grace alone, for His glory alone, through faith alone, in Christ alone.