Our Lord having said, Whatsoever you shall ask in My name, that I will do; that they might not think simply asking would be enough, He adds, If you love Me, keep My commandments. And then I will do what you ask, seems to be His meaning. Or the disciple shaving heard Him say, I go to the Father, and being troubled at the thought of it, He says, To love Me, is not to be troubled, but to keep My commandments: this is love, to obey and believe in Him who is loved. And as they had been expressing a strong desire for His bodily presence, He assures them that His absence w ill be supplied to them in another way: And I will pray the Father, and He will give you another Comforter.
He says, I will ask the Father, to make them believe Him: which they could not have done, had He simply said, I will send.
But what had He more than the Apostles, if He could only ask the Father to give others the Spirit? The Apostles did this often even without praying.
That He may abide with you for ever. The Spirit does not depart even at death. He intimates too that the Holy Spirit will not suffer death, or go away, as He has done. But that the mention of the Comforter might not lead them to expect another incarnation, a Comforter to be seen with the eye, He adds, Even the Spirit of truth Whom the world cannot receive, because it sees Him not, neither knows Him.
The Spirit of truth He calls Him, because He unfolds the figures of the Old Testament. The world are the wicked, seeing is certain knowledge; sight being the most certain of the senses.
As if He said, He will not dwell with you as I have done, but will dwell in your souls.
This speech levels at a stroke, as it were, the opposite heresies. The word another, shows the distinct personality of the Spirit: the word Paraclete, His consubstantiality.
When He had cleansed His disciples by the sacrifice of His passion, and their sins were remitted, and they were sent forth to dangers and trials, it was necessary that they should receive the Holy Spirit abundantly. But they were made to wait some time for this gift, in order that they might feel the want of it, and so be the more grateful for it when it came.