What does the Bible say about denominations in Christianity?

Denominations as we know them today—like Baptist, Presbyterian, or Catholic—are purely man-made and lack any biblical foundation. The New Testament does not endorse any division within the body of Christ, but rather calls believers to unity (1 Corinthians 1:10). Paul explicitly asks whether Christ is divided, indicating that the answer is no, thereby affirming the idea that all believers should be perfectly joined together in the same mind and judgment. This underscores the essential truth that there is only one Gospel, and any division challenges the fundamental unity intended among believers.