Why is unity in the church important according to the Bible?

In 1 Corinthians 1:10, Paul implores the church to speak the same thing and to have no divisions among them. This call for unity is rooted in the fact that believers are all part of the body of Christ. Division within the church hinders the effective witness of the gospel and reflects poorly on Christ. When believers are united, it strengthens their collective testimony and glorifies God. Moreover, unity is a manifestation of the love and grace of Christ towards His people, demonstrating that they are united in purpose and mission while displaying the character of God.