From the reformed reader:
http://www.reformedreader.org/rpc.htm
http://www.reformedreader.org/rpc.htm
I often viewed my friends who attended "catechism" classes as people who could not possibly be "born again" and therefore, in desperate need of evangelization. For unlike their misguided and dead church, our church had no creed but Christ, and we needed no such "man-made" guides to faith since we depended upon the Bible alone. Whatever "catechism" was, I wanted no part of it!
Catechism (from the Greek word catechesis) is simply instruction in the basic doctrines of the Christian faith. Instead of replacing or supplanting the role of the Bible in Christian education, catechism ideally serves as the basis for it. For the practice of catechism, as properly understood, is the Christian equivalent of looking at the box top of a jigsaw puzzle before one starts to put all of those hundreds of little pieces together. It is very important to look at the big picture and have it clearly in mind, so that we do not bog down in details, or get endlessly sidetracked by some unimportant or irrelevant issue. The theological categories given to us through catechism, help us to make sense out of the myriad of details found in the Scriptures themselves. Catechism serves as a guide to better understanding Scripture.
The practice of catechism also serves as an important safeguard against heresy and helps to mitigate some of the problems associated with the private interpretation of Scripture. How many times have you been forced to sit through a Bible study in which the goal was not to discover what the text actually says, but instead to discover what a particular verse means to each of the studies' participants?