First Reading — 1 Thessalonians 2:1-8
Ignatius of Antioch
On 2:4
Through prayer to God I have obtained the privilege of seeing your most worthy faces, and have even been granted more than I requested; for I hope as a prisoner in Christ Jesus to salute you, if indeed it be the will of God that I be thought worthy of attaining unto the end. For the beginning has been well ordered, if I may obtain grace to cling to my lot without hindrance unto the end. For I am afraid of your love, lest it should do me an injury. For it is easy for you to accomplish what you please; but it is difficult for me to attain to God, if ye spare me. For it is not my desire to act towards you as a man-pleaser, but as pleasing God, even as also ye please Him. For neither shall I ever have such [another] opportunity of attaining to God; nor will ye, if ye shall now be silent, ever be entitled to the honour of a better work. For if ye are silent concerning me, I shall become God's; but if you show your love to my flesh, I shall again have to run my race. Pray, then, do not seek to confer any greater favour upon me than that I be sacrificed to God while the altar is still prepared; that, being gathered together in love, ye may sing praise to the Father, through Christ Jesus, that God has deemed me, the bishop of Syria, worthy to be sent for from the east unto the west. It is good to set from the world unto God, that I may rise again to Him.
Responsorial Psalm — Psalm 139:1-3, 4-6
Basil of Caesarea
On 138:6
And so, when you have gone over all these points with suitable reflections on each, when you have, in addition, studied the process of breathing, the manner in which the heart conserves its warmth, the organs of digestion and the veins, you will discern in all of these wonders the inscrutable wisdom of the Creator; so that you will be able to say with the prophet: "Your knowledge is become wonderful" from the study of myself. "Give heed, therefore, to yourself," that you may give heed to God, to whom be glory and power forever and ever. Amen.
On 138:6
In truth, to know oneself seems to be the hardest of all things. Not only our eye, which observes external objects, does not use the sense of sight on itself, but even our mind, which contemplates intently another's sin, is slow in the recognition of its own defects. Therefore, even at present our speech, after eagerly investigating matters pertaining to others, is slow and hesitant in the examination of our own nature. Yet, it is not possible for one, intelligently examining himself, to learn to know God better from the heavens and earth than from our own constitution, as the prophet says, "Your knowledge is become wonderful from myself"; that is, having carefully observed myself, I have understood the superabundance of wisdom in you.
Gospel — Matthew 23:23-26
Origen
On 23:23
But because it was possible that some, hearing the Lord speak thus, might thereupon neglect paying tithes of small things, He prudently adds, These things ought ye to have done, (i. e. justice, mercy, and faith,) and not to leave the others undone, i. e. the tithing of mint, anise, and cummin.
On 23:23
Or, straining out a gnat, that is, putting from them small sins; swallowing a camel, that is, committing great sins, which He calls camels, from the size and distorted shape of that animal. Morally, The Scribes are those who think nothing else contained in Scripture than the bare letter exhibits; the Pharisees are all those who esteem themselves righteous, and separate themselves from others, saying, ‘Come not nigh me, for I am clean.’ Mint, anise, and cummin, are the seasoning, not the substantial part of food; as in our life and conversation there are some things necessary to justification, as judgment, mercy, and faith; and others which are like the seasoning of our actions, giving them a flavour and sweetness, as abstinence from laughter, fasting, bending the knee, and such like. How shall they not be judged blind who see not that it is of little avail to be a careful dispenser in the least things, if things of chief moment are neglected? These His present discourse overthrows; not forbidding to observe the little things, but bidding to keep more carefully the chief things.
On 23:25
This discourse instructs us that we should hasten to become righteous, not to seem so. For whoso seeks to be thought so, cleanses the outside, and has care of the things that are seen, but neglects the heart and conscience. But he who seeks to cleanse that which is within, that is, the thoughts, makes by that means the things without clean also. All professors of false doctrine are cups cleansed on the outside, because of that show of religion which they affect, but within they are full of extortion and guile, hurrying men into error. The cup is a vessel for liquids, the platter for meat. Every discourse then of which we spiritually drink, and all speech by which we are fed, are vessels for meat and drink. They who study to set forth well wrought discourse rather than such as is full of healthful meaning, are cups cleansed without; but within full of the defilement of vanity. Also the letter of the Law and the Prophets is a cup of spiritual drink, and a platter of necessary food. The Scribes and Pharisees seek to make plain the outward sense; Christ’s disciples labour to exhibit the spiritual sense.