John 18:4-6 (NKJV)
Jesus therefore, knowing all things that would come upon Him, went forward and said to them, "Whom are you seeking?"
They answered Him, "Jesus of Nazareth."
Jesus said to them, "I am He. " And Judas, who betrayed Him, also stood with them. 6 Now when He said to them, "I am He, " they drew back and fell to the ground.
Jesus had been in the Garden of Gesthemene all night in agonizing prayer to the Father. This scene is of the Priests and Roman soldiers and Judas coming to take Jesus away. Jesus spoke the same words he had spoken when he said "Before Abraham was, I AM", using the name God had given himself with Moses. The force of this statement was enough to knock these men to the ground. Yet Jesus would go willingly, for no man took his life, he laid it down of his own accord. He did this to suffer the wrath of God on our behalf. There is coming a day, however, when he will return in majesty and great spendor to take his rightful throne. I believe that even then we will draw back and fall to the ground in worship.