Thoughts from the Writings of Bishop J. C. Ryle

Religious divisions of some kind there must always be, so long as false doctrine prevails, and men will cleave to it. What communion can there be between light and darkness? How can two walk together except they be agreed? What unity can there be where there is not the unity of the Spirit? Division and seperation from those who adhere to false and unscriptural doctrine is a duty, and not a sin. (Expository Thoughts on Luke - Volume 2, pp. 19-20).