What does it mean that Christ is not divided?

Paul emphasizes in 1 Corinthians 1:13 that Christ is not divided, which bears significant theological implications. This teaches that the integrity of the gospel stands firm; there is one true message about Christ and His sacrifice for sinners. Divisions within the church over different interpretations of the gospel negate the truth of Christ’s unified work. This unity in Christ assures believers that their faith rests on a solid foundation—His righteousness and finished work—rather than on human efforts or opinions. When the church rallies around this central truth, it reflects the unity of the body of Christ, which should be the pursuit of all believers.