What is the significance of the foundation of the city of God?

The city of God, as depicted in Scripture, has its foundation in the gospel of God's grace, evident through the apostles' teachings. In Revelation, we see that the foundations of the city have the names of the twelve apostles inscribed upon them, emphasizing that the teachings of the apostles are foundational to our faith. Ephesians 2:20 tells us that Christ Himself is the chief cornerstone, underscoring the belief that all our hopes rest upon Him and the eternal purpose of the Father that was established before time began. This foundation signifies that our relationship with God is rooted in His love and grace towards His elect, which provides assurance of our salvation and eternal life. Thus, understanding the foundation of the city encourages believers to remain steadfast in their faith and to focus on the hope of glory that awaits them.