The sermon centers on the urgent call to unity within the church, rooted in 1 Corinthians 1:10–13, where the Apostle Paul confronts divisions over leadership, preferences, culture, and doctrine. It emphasizes that while truth inevitably creates division—separating the faithful from error—the church must remain united in core doctrine, especially the gospel of Christ's finished work, rejecting any allegiance to human leaders or cultural identities that fracture the body. Pastor Friesen warns against using personal preferences, such as dietary habits or holiday observances, as grounds for division, citing Romans 14 and 15, and underscores that unity is not uniformity but a shared commitment to Christ, where believers protect one another from stumbling blocks. Cultural and national divisions are condemned as hypocrisy, illustrated by Peter's hypocrisy in Antioch and the early church's appointment of deacons to address ethnic neglect, affirming that true unity transcends ethnicity and is built on mutual submission and love. Ultimately, the sermon calls for courageous obedience to Scripture, urging believers to step forward in faith, even at personal cost, to lead others into truth and to preserve the church's integrity as one body in Christ.