What does the Bible say about Christ as the Cornerstone?

In 1 Peter 2:6, Scripture points to Christ as the chief Cornerstone, emphasizing His role as the foundation of the Church. This metaphor illustrates Christ's strength, durability, and function as the sustainer of believers. Ephesians 2:20 further explains that Christ is the principal Foundation upon which the Church is built, highlighting His crucial position in offering stability and direction for all spiritual matters. Without Christ, the unity and cohesion of the Church would falter, akin to a building collapsing without its cornerstone.