John 18:7 Meaning

5They answered him, Jesus of Nazareth. Jesus saith unto them, I am he. And Judas also, which betrayed him, stood with them.

6As soon then as he had said unto them, I am he, they went backward, and fell to the ground.

7Then asked he them again, Whom seek ye? And they said, Jesus of Nazareth.

8Jesus answered, I have told you that I am he: if therefore ye seek me, let these go their way:

9That the saying might be fulfilled, which he spake, Of them which thou gavest me have I lost none.