Q: What is the difference between true and false Christians, and why do diverse Christians have so many definitions for this?

A: Well, I suppose all I’m going to be able to do is add one more opinion to the diversity! But I will endeavor to make my opinion a biblical one, and also explain some of the other perspectives that people may have heard.

Most fundamentally, a Christian is someone who follows the teachings and examples of Jesus Christ and the Apostles. Anyone who does so sincerely and accurately is a Christian, regardless of what I or anyone else may say. Of course, the rub comes when...