First Reading — Acts 10:25-26, 34-35, 44-48
Irenaeus
On 10:28
For even Peter, although he had been sent to instruct them, and had been constrained by a vision to that effect, spake nevertheless with not a little hesitation, saying to them: "Ye know how it is an unlawful thing for a man that is a Jew to keep company with, or to come unto, one of another nation; but God hath shown me that I should not call any man common or unclean. Therefore came I without gainsaying; " indicating by these words, that he would not have come to them unless he had been commanded.
On 10:35
...to whom Peter, coming in, said, "Of a truth I perceive that God is no respecter of persons: but in every nation, he that feareth Him, and worketh righteousness, is acceptable to Him." He thus clearly indicates, that He whom Cornelius had previously feared as God, of whom he had heard through the law and the prophets, for whose sake also he used to give alms, is, in truth, God. The knowledge of the Son was, however, wanting to him...
On 10:37
He thus clearly indicates, that He whom Cornelius had previously feared as God, of whom he had heard through the law and the prophets, for whose sake also he used to give alms, is, in truth, God. The knowledge of the Son was, however, wanting to him; therefore did [Peter] add, "The word, ye know, which was published throughout all Judea, beginning from Galilee, after the baptism which John preached, Jesus of Nazareth, how God anointed Him with the Holy Ghost, and with power; who went about doing good, and healing all that were oppressed of the devil; for God was with Him. And we are witnesses of all those things which He did both in the land of the Jews and in Jerusalem; whom they slew, hanging Him on a beam of wood: Him God raised up the third day, and showed Him openly; not to all the people, but unto us, witnesses chosen before of God, who did eat and drink with Him after the resurrection from the dead. And He commanded us to preach unto the people, and to testify that it is He which was ordained of God to be the Judge of quick and dead. To Him give all the prophets witness, that, through His name, every one that believeth in Him does receive remission of sins." The apostles, therefore, did preach the Son of God, of whom men were ignorant; and His advent, to those who had been already instructed as to God; but they did not bring in another god.
On 10:47
Neither, for a like reason, would he have given them baptism so readily, had he not heard them prophesying when the Holy Ghost rested upon them. And therefore did he exclaim, "Can any man forbid water, that these should not be baptized, who have received the Holy Ghost as well as we?" He persuaded, at the same time, those that were with him, and pointed out that, unless the Holy Ghost had rested upon them, there might have been some one who would have raised objections to their baptism.
...indicating by these words, that he would not have come to them unless he had been commanded. Neither, for a like reason, would he have given them baptism so readily, had he not heard them prophesying when the Holy Ghost rested upon them. And therefore did he exclaim, "Can any man forbid water, that these should not be baptized, who have received the Holy Ghost as well as we?" He persuaded, at the same time, those that were with him, and pointed out that, unless the Holy Ghost had rested upon them, there might have been some one who would have raised objections to their baptism.
Responsorial Psalm — Psalm 98:1, 2-3, 3-4
Eusebius of Caesarea
On 97:1–2
Along with my prayers I now add book 10 to the Church History and dedicate it to you, my most consecrated Paulinus, and blazon you as the seal of the whole work. It is appropriate that in a perfect number I shall here provide a completed account in celebration of the restoration of the churches, in obedience to the divine Spirit who urges us:
Sing to the Lord a new song, for he has done marvelous things;
His right and his holy arm have wrought salvation for him.
The Lord has made known his salvation:
His righteousness he has revealed in the sight of the heathen.
Accordingly, let me now sing the new song, since after those grim and horrifying scenes and narratives, I was now privileged to see and to celebrate what many righteous people and martyrs of God before me desired to see but did not see and to hear but did not hear. But they hurried on to far better things in the heavens, caught up into a paradise of divine bliss, while I, admitting that even the present circumstances are more than I deserve, have been totally astonished at the magnitude of grace he has conferred and offer him my total awe and worship, confirming the truth of the prophecies that declare:
Come and behold the works of the Lord,
What wonders he has wrought on the earth,
Making wars to cease to the ends of the world.
He will break the bow and shatter the spear,
And the shields he will burn with fire.
Rejoicing that all this has been clearly fulfilled, let me proceed with my narrative.
Second Reading — 1 John 4:7-10
Polycarp of Smyrna
On 4:9
Let us then continually persevere in our hope, and the earnest of our righteousness, which is Jesus Christ, "who bore our sins in His own body on the tree," "who did no sin, neither was guile found in His mouth," but endured all things for us, that we might live in Him. Let us then be imitators of His patience; and if we suffer for His name's sake, let us glorify Him. For He has set us this example in Himself, and we have believed that such is the case.
Gospel — John 15:9-17
John Chrysostom
On 15:10
(Hom. lxxvi. 2) If then I love you, be of good cheer; if it is the Father’s glory that ye bring forth good fruit, bear no evil. Then to rouse them to exertion, He adds, Continue ye in My love; and then shews how this is to be done: If ye keep My commandments, ye shall abide in My love.
On 15:11
(Hom. lxxvii. 1) Then because the Passion was now approaching to interrupt their joy, He adds, These things have I spoken unto you, that my joy may remain in you: as if He said, And if sorrow fall upon you, I will take it away; so that ye shall rejoice in the end.
On 15:12
(Hom. lxxvii. 1) All things, i. e. all things that they ought to hear. I have heard, shews that what He had taught was no strange doctrine, but received from the Father.
On 15:17
(Hom. lxxvii. 2) Or thus: I have said that I lay down My life for you, and that I first chose you. I have said this not by way of reproach, but to induce you to love one another. Then as they were about to suffer persecution and reproach, He bids them not to grieve, but rejoice on that account: If the world hate you, ye know that it hated Me before it hated you: as if to say, I know it is a hard trial, but ye will endure it for My sake.
On 15:17
(Hom. lxxvii. 2) As if Christ’s suffering were not consolation enough, He consoles them still further by telling them, the hatred of the world would be an evidence of their goodness; so that they ought rather to grieve if they were loved by the world: as that would be evidence of their wickedness.
On 15:17
As if He said, Ye must not be disturbed at having to share My sufferings; for ye are not better than I.