John Chrysostom — as excerpted in the Catena Aurea on John 7:31-36

“(Hom. l. 2) In this way He astonished the bolder part of the multitude, and made the earnest among them more eager to hear Him; so little time being now left, during which they could have the benefit of His teaching. He does not say, I am here, simply; but, I am with you; meaning, Though you persecute Me, I will not cease fulfilling my part towards you, teaching you the way to salvation, and admonishing you. What follows, And I go unto Him that sent Me, was enough to excite some fear.”