How do we know that spiritual unity is important for Christians?

Ephesians 4 teaches that Christians are called to maintain spiritual unity, emphasizing that there is one body and one Spirit. This unity is crucial for our collective identity in Christ, which fosters a healthy and functional community of believers. It encourages us to forbear with one another in love, promoting peace and the bond of fellowship. By being united in Christ, we bear witness to the transformative power of the gospel, enabling us to effectively live out our faith and grow spiritually together.