What is Catechism?

The Greek words from which "catechism" is derived, according to their common signification, mean to sound, to resound, to instruct by word of mouth, and to repeat the sayings of another. More properly, however, katecheo means to teach the first principles and rudiments of some particular doctrine. As applied to the doctrine of the church and as understood when thus used, it means to teach the first principles of the Christian religion, in which sense it occurs in Luke 1. 4, Acts 18. 25, Gal...