John 1:11
Since now this it was that stung them most, (for the thing appeared incredible even to those of the circumcision who believed, and therefore they brought it as a charge against Peter, when he had come up to them from Cesarea, that he “went in to men uncircumcised, and did eat with them”; and after that they had learned the dispensation of God, even so still they wondered how “on the Gentiles also was poured out the gift of the Holy Ghost”: showing by their astonishment that they could never have expected so incredible a thing,) since then he knew that this touched them nearest, see how he has emptied their pride and relaxed their highly swelling insolence. For after having discoursed on the case of the heathen, and shown that they had not from any quarter any excuse, or hope of salvation, and after having definitely charged them both with the perversion of their doctrines and the uncleanness of their lives, he shifts his argument to the Jews; and after recounting all the expressions of the Prophet, in which he had said that they were polluted, treacherous, hypocritical persons, and had “altogether become unprofitable,” that there was “none” among them “that seeks after God,” that they had “all gone out of the way”, and the like, he adds, “Now we know that what things soever the law says, it says to them who are under the law: that every mouth may be stopped, and all the world may become guilty before God.” “For all have sinned, and come short of the glory of God.”
Why then exaltest you yourself, O Jew? Why are you high minded? For your mouth also is stopped, your boldness also is taken away, you also with all the world have become guilty, and, like others, are placed in need of being justified freely. You ought surely even if you had stood upright and had had great boldness with God, not even so to have envied those who should be pitied and saved through His lovingkindness. This is the extreme of wickedness, to pine at the blessings of others; especially when this was to be effected without any loss of yours. If indeed the salvation of others had been prejudicial to your advantages, your grieving might have been reasonable; though not even then would it have been so to one who had learned true wisdom. But if your reward is not increased by the punishment of another, nor diminished by his welfare, why do you bewail yourself because that other is freely saved? As I said, you ought not, even were thou (one) of the approved, to be pained at the salvation which comes to the Gentiles through grace. But when you, who are guilty before your Lord of the same things as they, and have yourself offended, are displeased at the good of others, and think great things, as if you alone ought to be partaker of the grace, you are guilty not only of envy and insolence, but of extreme folly, and may be liable to all the severest torments; for you have planted within yourself the root of all evils, pride.
Wherefore a wise man has said, “Pride is the beginning of sin”: that is, its root, its source, its mother. By this the first created was banished from that happy abode: by this the devil who deceived him had fallen from that height of dignity; from which that accursed one, knowing that the nature of the sin was sufficient to cast down even from heaven itself, came this way when he labored to bring down Adam from such high honor. For having puffed him up with the promise that he should be as a God, so he broke him down, and cast him down into the very gulfs of hell. Because nothing so alienates men from the lovingkindness of God, and gives them over to the fire of the pit, as the tyranny of pride. For when this is present with us, our whole life becomes impure, even though we fulfill temperance, chastity, fasting, prayer, almsgiving, anything. For, “Every one,” says the wise man, “that is proud in heart is an abomination to the Lord.” Let us then restrain this swelling of the soul, let us cut up by the roots this lump of pride, if at least we would wish to be clean, and to escape the punishment appointed for the devil. For that the proud must fall under the same punishment as that (wicked) one, hear Paul declare; “Not a novice, lest being lifted up with pride, he fall into the judgment, and the snare of the devil.” What is “the judgment”? He means, into the same “condemnation,” the same punishment. How then does he say, that a man may avoid this dreadful thing? By reflecting upon his own nature, upon the number of his sins, upon the greatness of the torments in that place, upon the transitory nature of the things which seem bright in this world, differing in nothing from grass, and more fading than the flowers of spring. If we continually stir within ourselves these considerations, and keep in mind those who have walked most upright, the devil, though he strive ten thousand ways, will not be able to lift us up, nor even to trip us at all. May the God who is the God of the humble, the good and merciful God, grant both to you and me a broken and humbled heart, so shall we be enabled easily to order the rest aright, to the glory of our Lord Jesus Christ, by whom and with whom, to the Father and the Holy Ghost, be glory forever and ever. Amen.
Source: Homilies on the Gospel of John (New Advent)