We must be very careful to draw this distinction between essentials and non-essentials lest we become guilty of schism and begin to rend the body of Christ.
Topics: Unity
Source: What is an Evangelical? The Banner of Truth Trust, 1992, p. 90

Not to be in fellowship with those who are born again is to be guilty of schism, which is sinful.
Topics: Fellowship, Unity
Source: What is an Evangelical? The Banner of Truth Trust, 1992, p. 90.

"Schism" - People who were agreed about the centralities of the faith dividing and separating from one another over matters that were not essential to salvation, not absolutely vital. This is always one of the dangers afflicting us as evangelicals. We can be so rigid, so over-strict, and so narrow that we become guilty of schism.
Topics: Doctrine, Unity
Source: What is an Evangelical? The Banner of Truth Trust, 1992, p. 20-21.