How do we know Jesus has all power?

Jesus explicitly claims in Matthew 28:18, 'All power is given unto me in heaven and in earth.' This claim is not merely a title; it is a testament to His divine authority and nature. Furthermore, the testimony of the Scriptures consistently supports His power—whether it be through His ability to perform miracles, forgive sins, or His promise to be with His followers always (Matthew 28:20). The unity of His authority with that of the Father, as mentioned in John 10:30, further underscores that Jesus is not just a messenger but indeed God manifest in the flesh.