As Jesus is the cornerstone upon which the Church is built, so are his teachings the unifying cornerstone of Christian doctrine.
The Quiet Rebel
When Jesus spoke of conflict resolution in Matthew 18:15-20 he spoke of unrepentant wrongdoers and how such people ought to be dealt with in a Christian setting. What if the person may not be sinning, but their church teaches that their actions are sin? Some churches are humble and open to differences of opinion on issues that neither Jesus nor the Apostles commanded, while others are not. That makes life difficult for those who believe differently to their church’s doctrine. There are Catholics who practice birth control, Baptists who drink moderately and Amish who own televisions. Many of these people believe that they are not sinning and swim against the denominational tide. However, there is no need for conflict. Conflict can be avoided so as not to cause division and for peace. We just keep our personal faith private.