But at the end of his life he was cut off from the Father.
Wrong. The Father and Jesus are one. Jesus experienced suffering at the hands of His own creation. I cannot imagine a deeper pain than that- your own children taking their anger out on you and putting you through an excruciating death. I would want that cup to pass too. The agony was not in Jesus losing touch with His Father, but His own creation turning on Him. The cross is the revelation of God's love for humanity.
