What does it mean that Jesus has all authority?

The declaration that Jesus has all authority signifies His supreme control over every aspect of existence. In Matthew 28:18, Jesus proclaims, 'All power is given unto me in heaven and in earth.' This total sovereignty means that Christ is not merely a religious figure but the reigning King, with authority over creation itself. His dominion extends to governing providentially over the events of history and the lives of individuals. In the realm of salvation, His authority is crucial, as He determines who receives mercy and grace. This ensures believers that their salvation is secure in the hands of the one who has ultimate power and authority. Thus, Jesus’ all-encompassing authority brings profound assurance to the believer's heart.