17 But he said to them, "Do not be afraid; peace be with you. Bless God forevermore. 18 As for me, when I was with you, I was not acting on my own will, but by the will of God. Bless him each and every day; sing his praises. 19 Although you were watching me, I really did not eat or drink anything—but what you saw was a vision. 20 So now get up from the ground, and acknowledge God. See, I am ascending to him who sent me. Write down all these things that have happened to you." And he ascended. 21 Then they stood up, and could see him no more.

For so also was it with the angels who presented themselves to the eye and touch of men, not because they could do no otherwise, but because they were able and desirous to suit themselves to men by a kind of manhood ministry. For neither are we to suppose, when men receive them as guests, that the angels eat only in appearance, though to any who did not know them to be angels they might seem to eat from the same necessity as ourselves. So these words spoken in the Book of Tobit, You saw me eat, but you saw it but in vision; that is, you thought I took food as you do for the sake of refreshing my body. But if in the case of the angels another opinion seems more capable of defense, certainly our faith leaves no room to doubt regarding our Lord Himself, that even after His resurrection, and when now in spiritual but yet real flesh, He ate and drank with His disciples; for not the power, but the need, of eating and drinking is taken from these bodies. And so they will be spiritual, not because they shall cease to be bodies, but because they shall subsist by the quickening spirit.