John Owen 
On the Worship of God [EPUB ebook] 

In A Brief Instruction in the Worship of God, which came to be known as The Independents’ Catechism, Owen outlines the constitution and ordinances of a Christian Church, and explains the duties of office-bearers and members. Scarcely fifty questions, this short catechism gives insight into one of the greatest Puritan theologians and provides rich spiritual nourishment.