How do we know Jesus has power over life and death?

The authority of Jesus over life and death is clearly shown through His actions, particularly in the miracle of raising the widow's son in Nain (Luke 7:11-17). In this instance, He encounters a funeral procession and displays His compassion by halting it and commanding the young man to arise. This act was not solicited by the grieving mother, indicating that Jesus acts on His sovereign will to bring life where there is death. His power is not limited to physical life; it represents a spiritual reality where He has the ability to give new life to those who are spiritually dead in sin, as affirmed through His resurrection and the subsequent life He grants to believers. This sovereign act illustrates that His dominion extends beyond the grave, providing believers confidence in their faith.