Unity in the church is crucial because it allows members to come together and work towards a common goal. When there is unity in a church, the members are able to support and encourage one another, and they are able to accomplish much more than they would be able to individually. Additionally, unity in the church helps to promote a sense of community among the members, which can strengthen their faith and make them feel more connected to one another. Furthermore, a united church is better able to serve and reach out to those in need in their community, and it can be a powerful witness to the world of the love and grace of God.