Here’s what Tim Keller writes in an extended callout in Center Church: Doing Balanced, Gospel-Centered Ministry in Your City (Grand Rapids: Zondervan, 2012), 376–80:
All Christian movements must be based on commonly held biblical truths, and yet they must be characterized by trust and a willingness to unite around central truths and accept differences on secondary matters that—in the view of ministry partners—do not negate our common belief in the biblical gospel. On the one hand, we must realize that if we are going to maintain a healthy movement over time, we have to engage in direct discussion about any doctrinal errors we perceive. On the other hand, we must engage in such a way that we show great respect for the other party and aim to persuade them, not just punish them.
How can this be done? I suggest the following principles for “polemics”—contending over doctrine—that is seasoned in tone and strategy by the gospel itself. As I’ve read a number of respected Christian authors over the years, I have distilled a few “rules of engagement” that I believe can keep us from either avoiding polemics or engaging in it in a spiritually destructive way. [Read more…] about Tim Keller: 6 Principles for How to Argue When You Disagree