First Reading — 2 Thessalonians 1:1-5, 11-12
Irenaeus
On 1:6
And as, in those times, vengeance came from God upon the Egyptians who were subjecting Israel to unjust punishment, so is it now, the Lord truly declaring, "And shall not God avenge His own elect, which cry day and night unto Him? I tell you, that He will avenge them speedily." So says the apostle, in like manner, in the Epistle to the Thessalonians: "Seeing it is a righteous thing with God to recompense tribulation to them that trouble you; and to you who are troubled rest with us, at the revealing of our Lord Jesus Christ from heaven with His mighty angels, and in a flame of fire, to take vengeance upon those who know not God, and upon those that obey not the Gospel of our Lord Jesus Christ: who shall also be punished with everlasting destruction from the presence of the Lord, and from the glory of His power; when He shall come to be glorified in His saints, and to be admired in all them who have believed in Him."
For some of them, beholding Him in glory, saw His glorious life at the Father's right hand; others beheld Him coming on the clouds as the Son of man; and those who declared regarding Him, "They shall look on Him whom they have pierced," indicated His [second] advent, concerning which He Himself says, "Thinkest thou that when the Son of man cometh, He shall find faith on the earth?" Paul also refers to this event when he says, "If, however, it is a righteous thing with God to recompense tribulation to them that trouble you, and to you that are troubled rest with us, at the revelation of the Lord Jesus from heaven, with His mighty angels, and in a flame of fire."
On 1:9
...And as the wrath of God did then descend upon the unrighteous, here also does the apostle likewise say: "For the wrath of God shall be revealed from heaven against all ungodliness and unrighteousness of those men who hold back the truth in unrighteousness." And as, in those times, vengeance came from God upon the Egyptians who were subjecting Israel to unjust punishment, so is it now, the Lord truly declaring, "And shall not God avenge His own elect, which cry day and night unto Him? I tell you, that He will avenge them speedily." So says the apostle, in like manner, in the Epistle to the Thessalonians: "Seeing it is a righteous thing with God to recompense tribulation to them that trouble you; and to you who are troubled rest with us, at the revealing of our Lord Jesus Christ from heaven with His mighty angels, and in a flame of fire, to take vengeance upon those who know not God, and upon those that obey not the Gospel of our Lord Jesus Christ: who shall also be punished with everlasting destruction from the presence of the Lord, and from the glory of His power; when He shall come to be glorified in His saints, and to be admired in all them who have believed in Him."
Responsorial Psalm — Psalm 96:1-2a, 2b-3, 4-5
Justin Martyr
On 95:1–3
Then Trypho said, "We know that you quoted these because we asked you. But it does not appear to me that this Psalm which you quoted last from the words of David refers to any other than the Father and Maker of the heavens and earth. You, however, asserted that it referred to Him who suffered, whom you also are eagerly endeavouring to prove to be Christ."
And I answered, "Attend to me, I beseech you, while I speak of the statement which the Holy Spirit gave utterance to in this Psalm; and you shall know that I speak not sinfully, and that we are not really bewitched; for so you shall be enabled of yourselves to understand many other statements made by the Holy Spirit. 'Sing unto the Lord a new song; sing unto the Lord, all the earth: sing unto the Lord, and bless His name; show forth His salvation from day to day, His wonderful works among all people.' He bids the inhabitants of all the earth, who have known the mystery of this salvation, i.e., the suffering of Christ, by which He saved them, sing and give praises to God the Father of all things, and recognise that He is to be praised and feared, and that He is the Maker of heaven and earth, who effected this salvation in behalf of the human race, who also was crucified and was dead, and who was deemed worthy by Him (God) to reign over all the earth. As [is clearly seen] also by the land into which [He said] He would bring [your fathers]; [for He thus speaks]: 'This people [shall go a whoring after other gods], and shall forsake Me, and shall break my covenant which I made with them in that day; and I will forsake them, and will turn away My face from them; and they shall be devoured, and many evils and afflictions shall find them out; and they shall say in that day, Because the Lord my God is not amongst us, these misfortunes have found us out. And I shall certainly turn away My face from them in that day, on account of all the evils which they have committed, in that they have turned to other gods.'
Gospel — Matthew 23:13-22
Origen
On 23:13
Christ is truly the Son of that God Who gave the Law; after the example of the blessings pronounced in the Law, did Himself pronounce the blessings of them that are saved; and also after the cursings of the Law, He now sets forth a woe against sinners; Woe unto you, Scribes and Pharisees, hypocrites. They who allow that it is compatible with goodness to utter these denunciations against sinners, should understand that the purpose of God is the same in the cursings of the Law. Both the cursing there and the woe here fall upon the sinner not from Him who denounces, but from themselves who commit the sins which are denounced, and worthily bring upon themselves the inflictions of God’s discipline, appointed for the turning of men to good. So a father rebuking a son utters words of cursing, but does not desire that he should become deserving of those curses, but rather that he should turn himself from them. He adds the cause of this woe, Ye shut up the kingdom of heaven against men; for ye neither go in yourselves, nor suffer them that are entering to go in. These two commandments are by nature inseparable; because not to suffer others to enter in, is of itself enough to keep the hinderer out.
On 23:13
The Pharisees and the Scribes then would neither enter in, nor hear Him who said, By me if any man enter in he shall be saved; (John 10:9.) nor would they suffer those to enter in, who were able to have believed through the things which had been spoken before by the Law and the Prophets concerning Christ, but shut up the door with every kind of device to deter men from entering. Also they detracted from His teaching, denied all prophecy concerning Him, and blasphemed every miracle as deceitful, or wrought by the Devil. All who in their evil conversation set an example of sinning to the people, and who commit injustice, offending the weak, seem to shut up the kingdom of heaven before men. And this sin is found among the people, and chiefly among the doctors, when they teach men what the Gospel righteousness requires of them, but do not what they teach. But those who both teach and live well open to men the kingdom of heaven, and both enter in themselves, and invite others to enter in. Many also will not suffer those who are willing to enter into the kingdom of heaven, when they without reason excommunicate out of jealousy others who are better than themselves; thus they refuse them entrance, but these of sober spirit, overcoming by their patience this tyranny, although forbidden, yet enter in and inherit the kingdom. Also they who with much rashness have set themselves to the profession of teaching before they have learned, and following Jewish fables, detract from those who search out the higher things of Scripture; these do, as far as in them lies, shut out men from the kingdom of heaven.
On 23:15
For all who Judaize since the coming of the Saviour, are taught to follow the temper of those who cried at that time, Crucify, crucify him.
On 23:15
From this place we learn that there will be a difference of torment in hell, seeing one is here said to be singly a child of hell, another twofold. And we ought to consider here whether it is possible that a man should be generally a child of hell, as a Jew, suppose, or a Gentile, or whether specially so in consequence of some particular sins; that as a righteous man is increased in glory by the abundance of his righteousnesses, so a sinner’s punishment is increased manifold by the number of his sins.
On 23:16
Now an oath is in confirmation of somewhat that has been spoken. The oath here then may signify testimony of Scripture which we produce in confirmation of that word which we speak. So that Divine Scripture is the temple of God, the gold is the meaning which it contains. As the gold which is outside the Temple is not sanctified, so all thoughts which are without divine Scripture, however admirable they may seem, are not hallowed. We ought not therefore to bring any speculations of our own for the confirmation of doctrine, unless such as we can shew are hallowed by being contained in divine Scripture. The altar is the human heart, which is the chief thing in man. The offerings and gifts that are hid upon the altar, are every thing which are done in the heart, as to pray, to sing, to do alms, to fast. Every offering of a man then is sanctified by his heart, by which the offering is made. There cannot therefore be a more honourable offering than the heart of man, out of which the offering proceeds. If then one’s conscience does not smite him, he has confidence towards God, not by reason of his gifts, but so to speak because he has rightly ordered the altar of his heart. Thirdly, we may say that over the temple, that is over every Scripture, and over the altar, that is over every heart, there is a certain meaning which is called the Heaven, the throne of God Himself, in which we shall be able to see the things that are revealed face to face, when that which is perfect is come.
On 23:22
In like manner the custom which the Jews had of swearing by the Heaven He reprobates. For they did not, as they supposed, avoid the danger of taking an oath by God, because, Whose sweareth by heaven, sweareth by the throne of God, and by him that sitteth thereon.