Mark 14:50

And they all left him, and fled.

Peter's rash attack upon Malchus was rebuked by Jesus, and the excised ear was restored. In the face of his enemies, Jesus proclaimed himself as God, "I AM" (John 18:8); from the sudden outflashing of his divine power, the soldiers faded backward and lay prostrate. Having shown the completeness of his power, the Lord required the arresting group to refrain from taking the Twelve into custody (John 18:8f), thus revealing the wonder that had just taken place as a work wrought, not upon his own behalf, but upon theirs. The apostles, true to the Lord's prophecy, and perhaps totally bewildered by the complexity of events which they, at that time, only partially understood, forsook him and fled. This action on their part was probably necessary for the preservation of their lives, because there is every reason to believe that the hierarchy would have liked nothing better than to have had the whole group in custody.