These two catechisms function as two levels
of explanation of the theology John Owen taught to his
church. The lesser catechism is intended for the children of his
congregation. It is in a question and answer format, with questions
ranging from "Is there but one God?" to "What is the Lord's Supper?"
The greater catechism is also in Q and A form, but goes into much more
depth on a larger range of topics. Owen discusses the Trinity,
incarnation of Christ, justification, vocation, the sacraments, and many
other doctrines, all with extensive Scripture references. Owen, a
product of the nonconformist, Congregationalist movement of England, was
a staunch professor of faith and a proponent of tolerance and sincerity.
These catechisms are the foundation of his theology and are a wonderful
source for study.