Dr. Pyuwarmer flipped the chart closed, took off his reading glasses, and let out a long sigh. “John, there is a procedure that can save your life. I’d like you to consider it.John Skeptich rubbed his temples and looked up. “Well, is it an invasive procedure?”“Well, that’s hard to answer, John. Yes and no.”“You call that an answer, doc?” John’s frustration was beginning to show. “Either it is or it isn’t.”“Well, it’s kind of both. I’m sorry, but it’s hard to describe. It’s a very advanced procedure, and I don’t really understand it fully myself. However, I think you should have it done.”“Do you have any literature that can explain it?”“Well, yes, but it’s not very clearly spelled out. You kind of have to read between the lines. It’s all in there though.”John could no longer hide his frustration. He stood up, grabbed his coat, and fixed Dr. Pyuwarmer with a hard look. “Look doctor. You’re asking me to submit to a procedure you don’t understand and can’t explain. With all due respect, I’ll take my chances!” With that, John swept out the door, slamming it so hard that Dr. Pyuwarmer’s medical school diploma fell from the wall.Putting yourself in John’s shoes, it’s easy to see how hard it would be to put your faith in something that your doctor didn’t even understand. Just as in this analogy, Christians must be prepared to explain our faith with nonbelievers. There are few things more important for Christians to understand than the nature of God. Many of the differences between biblical Christianity and cults occur within the context of variant understandings of the nature of God. If we are to worship God in truth (John 4:24) and share the truth with others, it is vitally important that we have an understanding of what the Bible says about God.Perhaps the single most misunderstood doctrine regarding the nature of God is the doctrine of the Trinity. Believers and nonbelievers alike have a difficult time comprehending God’s triune nature,