Jesus in Gethsemané was sweating blood. He knew what was ahead for Him: the crucifixion. On one Jesus maybe tried to avoid the crucifixion that lay ahead of Him. In Luke 22:42; Matthew 26:42 & Mark 14:36 He cried, carry aside This cup from me. However not my Will but Thine will be done. So His prayer was contradictory. He wanted to avoid the cross but at the same time He wanted to do His Father’s will. Maybe there is a third explanation. I believe He was ill when He was in Gethsemané. To be slain as a lamb it was necessarily for Him to be healthy. It could be that He prayed for taking away His illness before being crucified. Immediately after His prayer an angel from heaven was sent to Him to strengthen Him (Luke 22:43). Came the angel down to heal Him?