How does Christ fulfill God's eternal purpose?

Christ's role as the center of God's eternal purpose is encapsulated in the vision revealed to John in Revelation 5. He is the only one deemed worthy to open the sealed book that represents God's decrees. All that God does for sinners is accomplished through Christ, as noted in Ephesians 1:4-5, where it states that we are chosen in Him before the foundation of the world. This centrality means that Christ's life, death, and resurrection are vital to fulfilling God's divine will for salvation. Without Him, the mysteries of God’s plan remain unrevealed, illustrating the absolute necessity of Christ’s mediatorship in God’s redemptive narrative.