How do we know that Christ has the power to save?

The assurance of Christ's power to save is intricately tied to His identity and mission as both Lord and Savior. In the account of Luke 17 and throughout the New Testament, we find that Jesus possesses sovereign authority over all flesh, which He exercises to grant eternal life to those whom the Father has given to Him (John 17:2). This power is based on the meritorious work He accomplished through His life, death, and resurrection, as stated in Romans 14:9, where it reveals that Christ died and rose again to exercise His Lordship over both the living and the dead.

Moreover, the historical fulfillment of His works, including the miracles He performed, demonstrates His divine authority and ability to save effectively. As the One who fulfills the law perfectly, He alone has the right and power to extend grace and forgiveness to sinners. The doctrine of predestination, underscored in Ephesians 1:4-5, reaffirms that the power to save is not based on human merit but rather on God's eternal purpose and grace. Believers can thus be assured of their salvation, rooted firmly in the authority and redemptive power of Christ.