Having taught yesterday in our adult and youth Christian Living Class about the importance of theology/doctrine for the Christian and the church, I appreciated these words from Frederick Buechner, Whistling in the Dark:

X + Y = Z. IF YOU know the value of one of the letters, you know something. If you know the value of two, you can probably figure out the whole thing. If you don’t know the value of any, you don’t know much.

Preachers tend to forget this. “Accept Jesus Christ as your personal Lord and Savior and be saved from your sins,” or something like that, has meaning and power and relevance only if the congregation has some notion of what, humanly speaking, sin is, or being saved is, or who Jesus is, or what accepting him involves. If preachers make no attempt to flesh out these words in terms of everyday human experience (maybe even their own) but simply repeat with variations the same old formulas week after week, then the congregation might just as well spend Sunday morning at home with the funnies.

The blood atonement. The communion of saints. The Holy Ghost. If people’s understanding of theological phrases goes little deeper than their dictionary or catechetical definitions, then to believe in them has just about as much effect on their lives as to believe that Columbus discovered America in 1492 or that E = mc2.