What does the Bible say about division in the church?

The Bible speaks of division as both a necessary action by God and as a result of disagreement over doctrine. For example, Paul instructs believers in Romans to mark those who cause divisions contrary to the teachings they have received (Romans 16:17). However, divisions can also serve God's purpose, as seen throughout scripture where He selectively saves certain individuals or groups, such as Noah and his family, illustrating His sovereign grace. These divisions often arise when the truth of the Gospel is proclaimed, revealing those who believe and those who do not.