How do we know the greatness of Christ's work is true?

The greatness of Christ's work is established by a biblical understanding of God's sovereign grace and the accomplishments achieved through Christ. Hebrews 4:3 states, 'the works were finished from the foundation of the world,' indicating that God's plan was established before creation itself. This plan includes Christ's sacrificial death, triumphant resurrection, and ongoing intercession for His people. Importantly, the completed work of Christ is encapsulated in the proclamation, 'It is finished' (John 19:30), which assures believers that their salvation is fully secured and not dependent on human effort. Therefore, we know the greatness of His work is true not only through Scripture but also through the transformative effects it has on those who come to Him in faith.