John 13:31

Therefore, when he was gone out, Jesus said
Christ and his true disciples being together alone, he used a greater freedom of conversation with them, and entered into some discourse about his sufferings and death; with a view to give them some instructions about their future conduct and behaviour, and in order to support them under the loss of his presence; and tells them in the first place, that

now is the son of man glorified:
by "the son of man", he means himself; a phrase he often uses, when speaking of himself; this was a title the Messiah went by in prophecy; was true in fact of Jesus, who was the son of Abraham, and the son of David, and expresses the truth of his humanity; and he the rather chooses to use it now, because he is speaking of a glorification, which he in his divine nature was incapable of, and which regards either time past, present, or to come: the meaning may be, either that he had been already glorified by his doctrines and miracles; or that he was now glorified, by discovering the traitor, before he made one single overt act towards betraying him; or that in a very short time he should be glorified, meaning at his death; see ( John 17:1 ) . But how was he then glorified, when it was an accursed one, and attended with so much ignominy and reproach? he was then glorified by his Father, who supported him in it, and carried him through it; so as that he conquered all his enemies, and obtained eternal salvation for his people: moreover, the death of Christ was not only his way to glory, but was attended with many wonderful and surprising events; as the darkness, the earthquake, the rending of the rocks, and vails of the temple, and the like; and it was also glorious in the eyes of his Father, because hereby his purposes were accomplished, his covenant transactions brought about, his law and justice were satisfied, and the salvation of his people finished:

and God is glorified in him.
The glory of God was great, in the salvation of his elect by the death of Christ; for hereby his wisdom and power, his truth and faithfulness, his justice and holiness, as well as his love, grace, and mercy, were glorified.