What does it mean that Christ is the foundation of the church?

Christ being described as the foundation of the church underscores His role as the cornerstone upon which all Christian belief and practice is built. This is reminiscent of the truth articulated in Ephesians 2:20, highlighting that believers are built upon the apostles and prophets, with Christ Himself as the chief cornerstone. The stability and truthfulness of the church are rooted in Christ's life, death, and resurrection, making Him the source of truth and salvation. The church's mission is to elevate Christ and reflect His character in all activities and teachings.