First Reading — Exodus 24:3-8
Rashi
On 24:3
ויבא משה ויספר לעם AND MOSES CAME AND RELATED TO THE PEOPLE — on that same day (the 4th of Sivan).
את כל דברי ה׳ ALL THE WORDS OF THE LORD — the commands concerning their keeping apart from women and the setting of bounds at Mount Sinai.
ואת כל המשפטים AND ALL THE JUDGMENTS which had been ordained before the Sinaitic legislation: the seven commands given to the “Sons of Noah” (the non-Israelite world), the law of the Sabbath, of filial respect, of the “red heifer” and regarding the administration of justice, all of which had been given to them already in Marah (cf. Sanhedrin 56b).
On 24:4
ויכתב משה AND MOSES WROTE [ALL THE WORDS OF THE LORD] — from בראשית up to (but not including) the account of the Giving of the Torah and he wrote down the commandments that were given to them in Marah (cf. Mekhilta on Exodus 19:10).
וישכם בבקר AND ROSE UP EARLY IN THE MORNING — on the fifth of Sivan (cf. Rashi on Exodus 19:11) (Shabbat 88a).
On 24:6
ויקח משה חצי הדם AND MOSES TOOK THE HALF OF THE BLOOD — Who divided it into halves? An angel came down and divided it (Leviticus Rabbah 6:5).
באגנת IN BASONS — There were two basons, one for holding the half of the blood of the burnt offering and the other for holding the half of the blood of the peace offerings, in order to sprinkle it (both bloods) on the people. From here have our Rabbis inferred (Keritot 9a) that our ancestors entered into the covenant with God by means of circumcision, immersion and sprinkling of blood — and although immersion is not mentioned in this paragraph it must have taken place, for no sprinkling is effective without immersion preceding it (cf. Tosafot Yevamot 46b ד"ה דאין הזאה בלא טבילה).
On 24:7
ספר הברית THE BOOK OF THE COVENANT — the book which we have said contained the part of the Torah from בראשית till the “Giving of the Torah” including the Commandments that were given to them at Marah (Mekhilta; cf. Rashi on v. 4).
On 24:8
ויזרק means sprinkling — he sprinkled it on the people (not he threw it against the people, as this word might imply; cf. e. g., Exodus 9:8: וזרקו משה השמימה). The Targum, however, renders it by: and he poured it (the blood) upon the altar as atonement for (על) the people, adding the words “upon the altar”, and taking על העם to denote “on behalf of the people”, i. e. he poured it out to atone for the people.
Responsorial Psalm — Psalm 116:12-13, 15-16, 17-18
Second Reading — Hebrews 9:11-15
Clement of Alexandria
On 9:14
However, one ought to consider continence not merely in relation to one form of it, that is, sexual relations, but in relation to all the other indulgences for which the soul craves when it is ill content with what is necessary and seeks for luxury. It is continence to despise money, softness, property, to hold in small esteem outward appearance, to control one's tongue, to master evil thoughts. In the past certain angels became incontinent and were seized by desire so that they fell from heaven to earth. And Valentine says in the letter to Agathopus: "Jesus endured all things and was continent; It was his endeavour to earn a divine nature; he ate and drank in a manner peculiar to himself, and the food did not pass out of his body. Such was the power of his continence that food was not corrupted within him; for he himself was not subject to the process of corruption." As for ourselves, we set high value on continence which arises from love to the Lord and seeks that which is good for its own sake, sanctifying the temple of the Spirit. It is good if for the sake of the kingdom of heaven a man emasculates himself from all desire, and "purifies his conscience from dead works to serve the living God."
We ought to examine not merely one single form of self-control in sexual matters but the other objects which our soul self-indulgently desires, not content with bare necessities but making a fuss about luxury. Self-control means indifference to money, comfort and property, a mind above spectacles, control of the tongue, mastery of evil thoughts. It actually happened that some angels suffered a failure of self-control, were overpowered by sexual desire and fell from heaven to earth. Valentinus in his letter to Agathopus says, "Jesus showed his self-control in all that he endured. He lived in the practice of Godhead. He ate and drank in a way individual to himself without excreting his food. Such was his power of self-control that the food was not corrupted within him, since he was not subject to corruption." So we embrace self-control out of the love we bear the Lord and out of its honorable status, consecrating the temple of the Spirit. It is honorable "to emasculate oneself" of all desire "for the sake of the kingdom of heaven" and "to purify the conscience from dead works to serve the living God."
Gospel — Mark 14:12-16, 22-26
John Chrysostom
On 14:12
(ubi sup.) Whilst Judas was plotting how to betray Him, the rest of the disciples were taking care of the preparation of the Passover: wherefore it is said, And the first day of unleavened bread, when they killed the Passover, his disciples said unto him, Where wilt thou that we go and prepare where thou mayest eat the Passover.
On 14:12
(ubi sup.) Not our Passover, but in the meanwhile that of the Jews; but He did not only appoint ours, but Himself became our Passover. Why too did He eat it? Because He was made under the Law, to redeem them that were under the Law, (Gal. 4:4) and Himself give rest to the Law. And lest any one should say that He did away with it, because He could not fulfil its hard and difficult obedience, He first Himself fulfilled it, and then set it to rest.
On 14:17
(ubi sup.) Where it is evident that He did not proclaim him openly to all, lest He should make him the more shameless; at the same time He did not altogether keep it silent, lest thinking that he was not discovered, he should boldly hasten to betray Him.
On 14:22
(ubi sup.) Even now also that Christ is close to us; He who prepared that table, Himself also consecrates it. For it is not man who makes the offerings to be the Body and Blood of Christ, but Christ who was crucified for us. The words are spoken by the mouth of the Priest, and are consecrated by the power and the grace of God. By this word which He spoke, This is my body, the offerings are consecrated; and as that word which says, Increase and multiply, and fill the earth, (Gen. 1:28) was sent forth but once, yet has its effect throughout all time, when nature does the work of generation; so also that voice was spoken once, yet gives confirmation to the sacrifice through all the tables of the Church even to this day, even to His advent.
On 14:22
(ubi sup.) For Christ offered His blood to him who betrayed Him, that he might have remission of his sins, if he had chosen to cease to be wicked.
On 14:24
(ubi sup.) Let there not be therefore a Judas at the table of the Lord; this sacrifice is spiritual food, for as bodily food, working on a belly filled with humours which are opposed to it, is hurtful, so this spiritual food if taken by one polluted with wickedness, rather brings him to perdition, not by its own nature, but through the fault of the recipient. Let therefore our mind be pure in all things, and our thought pure, for that sacrifice is pure. There follows: And he said unto them, This is my blood of the New Testament, which is shed for many.