Matt. XIX. 27.
“Then answered Peter and said unto Him, Behold, we have forsaken all, and followed You; what shall we have therefore?”
All which? O blessed Peter; the rod? The net? The boat? The craft? These things do you tell me of, as all? Yea, says he, but not for display do I say these things, but in order that by this question I may bring in the multitude of the poor. For since the Lord had said, “If you will be perfect, sell that you have, and give to the poor, and you shall have treasure in Heaven;” lest any one of the poor should say, What then? If I have no possessions, can I not be perfect? Peter asks, that you, the poor man, may learn, that you are made in no respect inferior by this: Peter asks, that you may not learn from Peter and doubt (for indeed he was imperfect as yet, and void of the Spirit), but that, having received the declaration from Peter's Master, you may be confident.
For like as we do (we make things our own often when speaking of the concerns of others), so did the apostle, when he put to Him this question in behalf of all the world. Since that at least he knew with certainty his own portion, is manifest from what had been said before; for he that had already received the keys of the Heavens, much more might feel confidence about the things hereafter.
But mark also how exactly his reply is according to Christ's demand. For He had required of the rich man these two things, to give that he had to the poor, and to follow Him. Wherefore he also expresses these two things, to forsake, and to follow. “For behold we have forsaken all,” says he, “and have followed You.” For the forsaking was done for the sake of following, and the following was rendered easier by the forsaking, and made them feel confidence and joy touching the forsaking.
What then says He? “Verily, I say unto you, that you which have followed me, in the regeneration when the Son of Man shall sit on the throne of His glory, you also shall sit upon twelve thrones, judging the twelve tribes of Israel.” What then, one may say, shall Judas sit there? By no means. How, then, does He say, “You shall sit on twelve thrones?” how shall the terms of the promise be fulfilled?
Hear how, and on what principle. There is a law ordained of God, recited by Jeremiah, the prophet to the Jews, and in these words: “At what instant I shall speak a sentence concerning a nation and kingdom, to pluck up and destroy; if that nation turn from their evil deeds, I also will repent of the evils, which I thought to do unto them. And at what instant I shall speak concerning a nation and kingdom to build and to plant it; and if they do evil in my sight, that they obey not my voice, I also will repent of the good, which I said I would do unto them.”
For the same custom do I observe with respect to the good things as well, says He. For though I spoke of building up, should they show themselves unworthy of the promise, I will no longer do it. Which sort of thing was done with respect to man upon his creation, “For the dread of you,” it is said, “and the fear of you shall be on the wild beasts,” and it came not to pass, for he proved himself unworthy of the sovereignty, even as did Judas also.
For in order that neither at the denunciations of punishment any men should despair and become more hardened, nor by the promises of good things be rendered causelessly more remiss, He remedies both these evils, by that which I have before mentioned, saying in this way: Though I should threaten, do not despair; for you are able to repent, and to reverse the denunciation, like the Ninevites. Though I should promise any good thing, grow not remiss because of the promise. For should you appear unworthy, the fact of my having promised will not advantage you, but will rather bring punishment. For I promise you being worthy.
Therefore even then in His discourse with His disciples He did not promise to them simply, for neither did He say, “you,” only, but added, “which have followed me,” that He might both cast out Judas, and draw towards Him those that should come afterwards. For neither to them only was it said, nor to Judas any more, when he had become unworthy.
Now to the disciples He promised things to come, saying, “You shall sit on twelve thrones,” for they were now of a higher stamp, and sought after none of the things of the present world, but to the rest He promises also what are here.
For “every one,” He says, “that has forsaken brethren, or sisters, or father, or mother, or wife, or children, or lands, or house, for my name's sake, shall receive an hundredfold in this world, and shall inherit eternal life.”
For lest any after having heard the word “ye,” should suppose this a thing peculiar to the disciples (I mean now the enjoying the greatest and first honors in the things to come), He extended the word, and spread the promise over the whole earth, and from the things present establishes the things to come also. And to the disciples also at the beginning, when they were in a more imperfect state, He reasoned from the things present. For when He drew them from the sea, and took them from their trade, and commanded them to forsake the ships, He made mention not of Heaven, not of thrones, but of the things here, saying, “I will make you fishers of men;” but when He had wrought them to be of higher views, then after that He discourses of the things to come also.
2. But what is, “Judging the twelve tribes of Israel?” This is, “condemning them.” For they are not surely to sit as judges, but like as He said the Queen of the South should condemn that generation, and the Ninevites shall condemn them; so now these also. Therefore He said not, the nations, and the world, but the tribes of Israel. For since both the Jews alike and the apostles had been brought up under the same laws, and customs, and polity; when the Jews said, that for this cause they could not believe in Christ, because the law forbade to receive His commandments, by bringing forward these men, who had received the same law, and yet had believed, He condemns all those; like as even already He had said, “therefore they shall be your judges.”
And what great thing does He promise them, it may be said, if what the Ninevites have and the Queen of the South, this these are to have also? In the first place He had promised them many other things before this, and after this does promise them, and this alone is not their reward.
And besides even in this He intimated by the way something more than these things. For of those He simply said, The men of Nineveh shall rise up and condemn this gen eration, and, “The Queen of the South shall condemn it;” but concerning these, not merely thus, but how? “When the Son of Man shall sit upon the throne of His glory, then shall you also sit upon twelve thrones,” says He, declaring, that they also shall reign with Him, and partake of that glory. “For if we suffer,” it is said, “we shall also reign with Him.” For neither do the thrones signify a sitting (in judgment), for He alone is the one that shall sit and judge, but honor and glory unspeakable did He intimate by the thrones.
To these then He spoke of these things, but to all the rest of eternal life and an hundredfold here. But if to the rest, much more to these too, both these things, and the things in this life.
Source: Homilies on the Gospel of St. Matthew (New Advent)