John 18:6

They went backward, and fell to the ground. — There is nothing in the narrative to suggest that our Lord put forth miraculous power to cause this terror. The impression is rather that it was produced by the majesty of His person, and by the answer which to Jewish ears conveyed the unutterable name, “Jehovah” (I AM). (Comp. Note on John 8:24.) Guilt trembled before the calmness of innocence. Man fell to the ground before the presence of God. To Judas the term must have been familiar, and have brought back a past which may well have made him tremble at the present. To the officers the voice came from Him of whom they had been convinced before that “Never man spake like this man” (John 7:46). They have come to take Him by force, but conscience paralyses all their intentions, and they lay helpless before Him. He will surrender Himself because His hour is come (John 17:1); but His life no one taketh from Him. For this sense of awe in the presence of Christ, comp. the account of the cleansing of the Temple in John 2:14 et seq.