The Ten Commandments are found in Exodus 20:1-17 and Deuteronomy 5:4-21. In my research on catechisms, I was not a bit surprised that all of the catechisms I've reviewed have sections on the Ten Commandments. I did get confused, however, when I found there are different ways to number the Ten Commandments. None of the commands given by God to the Israelites through Moses has been removed, but they are separated differently.