How do we know the authority of Jesus is true?

The authority of Jesus is firmly established through His actions, teachings, and the divine affirmation experienced at His transfiguration. In Matthew 17:5, a voice from the cloud declares, 'This is my beloved Son, with whom I am well pleased; listen to him.' This proclamation not only asserts Jesus' authority but also encourages followers to heed His words. His miraculous works, including healing the sick, raising the dead, and His transfiguration, confirm His sovereignty over creation and affirm His unique relationship with God the Father. Throughout the Gospels, Jesus fulfills Old Testament prophecies, establishing His authority as the long-awaited Messiah. This continual thread of divine endorsement assures believers that Jesus possesses the ultimate authority to forgive sins and grant eternal life, being the only mediator between God and man. Thus, the authority of Jesus is not merely asserted; it is validated through scripture and witnessed by His disciples and the church.