All power is given to Jesus  -  Matthew 28:18

And Jesus came and spake unto them, saying, All power is given unto me in heaven and in earth.

Jesus told His disciples that all authority had been given to Him in heaven and on earth. In reality, Jesus has always had all authority. But here, He was speaking of authority as head of the new creation. Since His death and resurrection, He had the authority to give eternal life, as He is the first-born from the dead.