I befriended a reverend in the past who has since moved on. He was a good friend, and this was something that he always talked with me about, I don't know. I think it was just one of his favorite subjects.
Jesus, as the Son of God, knew what was coming. It wasn't just death, but the punishment for the sins of all mankind. Each lashing would be a lashing for countless numbers of sins. The pain would be unbareable, and it would happen over and over and over again. It would have a supernatural quality to it, becoming drawn out and the man holding the whip would receive extra strength and stamina from God Himself. There would be no other purpose for the man with the whip, anywhere in the universe, except to beat Jesus to supernatural pain.
This isn't pain that you or I would feel if we were whipped with the same whip. This was the sacrifice, the Lamb of God. A pure heart, the Blood of God, spilling as punishment for us. The sins for all mankind would be paid for with this beating. With this death.
Jesus knew that was coming, and he was scared. He was so full of love for us and His Father, he was scared. He was nothing but Love. To face such a judgment for us, he knew that for it to pay for all of mankind's sins, the punishment had to fit the crime. The punishment had to fit the crime. The punishment had to fit the crimes.
Being innocent of any crimes, Jesus asked if there was another way for this to happen...Let this cup pass from me. That's what he wanted. But at the same time, with the same prayer, he said that it wasn't his (Jesus) will that must be done, but his Father's (God's) will that must be done.
He was telling his Father that he was afraid, scared to go through with this because he knew that it was going to be supernatural pain. But he would do it, because it was God's will. God's plan. God's love for us.
Pretty amazing, isn't He?