Rise, let us be going,.... Not to run away from the enemy, but to meet him: this was said, partly to arouse his sleepy disciples; and partly to show his love to his Father, and his submission to his will; as also to express the fortitude of his mind as man; he was now rid of his fears, and free from those agonies and dreadful apprehensions of things, he was but a little while ago possessed of; and likewise, to signify his willingness to be apprehended, and to suffer, and die, in the room of his people:he is at hand that doth betray me.
This shows his omniscience: he not only knew, as he did from the beginning, who should betray him; but he knew when be would do it; and he knew where the betrayer now was, that he was just now coming upon him, in order to deliver him the hands of sinful men.