Acts 1:16

“The Apostle Peter, therefore, after the resurrection of the Lord, and His assumption into the heavens, being desirous of filling up the number of the twelve apostles, and in electing into the place of Judas any substitute who should be chosen by God, thus addressed those who were present: "Men [and] brethren, this Scripture must needs have been fulfilled, which the Holy Ghost, by the mouth of David, spake before concerning Judas, which was made guide to them that took Jesus. For he was numbered with us: ... Let his habitation be desolate, and let no man dwell therein; and, His bishop-rick let another take;" -thus leading to the completion of the apostles, according to the words spoken by David.”

“"Men and brethren," he says, "this Scripture must needs have been fulfilled, which the Holy Ghost spake before." Why did he not ask Christ to give him some one in the room of Judas? It is better as it is. For in the first place, they were engaged in other things; secondly, of Christ's presence with them, the greatest proof that could be given was this: as He had chosen when He was among them, so did He now being absent. Now this was no small matter for their consolation. But observe how Peter does everything with the common consent; nothing imperiously. And he does not speak thus without a meaning. But observe how he consoles them concerning what had passed. In fact, what had happened had caused them no small consternation. For if there are many now who canvass this circumstance, what may we suppose they had to say then? "This Scripture," says he, "must needs have been fulfilled, which the Holy Ghost spake before." Always he comforts them by the prophecies. So does Christ on all occasions. In the very same way, he shows here that no strange thing had happened, but what had already been foretold. "This Scripture must needs have been fulfilled," he says, which the Holy Ghost by the mouth of David spake before." He does not say, David, but the Spirit through him. See what kind of doctrine the writer has at the very outset of the book. Do you see, that it was not for nothing that I said in the beginning of this work, that this book is the Polity of the Holy Spirit? "Which the Holy Ghost spake before by the mouth of David." Observe how he appropriates him; and that it is an advantage to them, that this was spoken by David, and not by some other Prophet. Here is forethought for providing a teacher; here was the first who ordained a teacher. He did not say, "We are sufficient." So far was he beyond all vain-glory, and he looked to one thing alone. And yet he had the same power to ordain as they all collectively. But well might these things be done in this fashion, through the noble spirit of the man, and because prelacy then was not an affair of dignity, but of provident care for the governed.”

“Twelve constellations of the [stellar] choir shine and cast the brilliance of Olympus on the earth. Note what realization this light reveals: The world is divided by the regions of its four sides; a triune faith calls this [world to belief], in whose name [the world] is washed in the font. Therefore, four taken together three times makes up the whole figure which the twelvefold order possesses, and to the devout disciples, to whom this baptism is commanded, a mystic reason gave cause for making up again the former number.”

“Brethren, it is necessary to fulfill the Scripture which the Holy Spirit foretold, etc. Peter the Apostle feared to remain in the number eleven. For all sin is 'eleven,' because through perverse actions, it transgresses the precepts of the Decalogue. Hence, because none of our justice is innocent by itself, the tabernacle that contained the Ark of the Lord was overlaid inside with eleven goat-hair curtains. And he restored the number of apostles to twelve, so that by the two parts of seven (for three times four is a fine sum), they would maintain the grace they preached and with the number, and those who were to preach the faith of the Holy Trinity to the fourfold world, as the Lord says: "Go, therefore, and make disciples of all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Spirit" (Matthew 28:19), they would also strengthen the perfection of work by the sacrament of the number. According to the higher understanding, the loss that the Church suffers from false brethren persists to the greatest extent unaddressed. But when at the end of the world, the people of the Jews who crucified the Lord are believed to be reconciled to the Church, like on the approaching fiftieth day, the number of the apostles is restored.”

“"In those days," that is, in the days before Pentecost, "Peter, standing in the midst of the disciples, said," as the fervent disciple and the one to whom Christ entrusted His flock, and, finally, as the first. But pay attention: he does everything with the common consent and nothing on his own will and authority. He persuades even on the basis of prophecy and does not say that David said, but: "the Holy Spirit foretold through the mouth of David"; then he adds "concerning Judas, who was the guide of those who seized Jesus." Notice here too the wisdom of this man — notice how in the narrative he does not insult and does not speak of Judas as despised and most despicable, but simply states what happened.”

“Peter consoles them with prophecy. Nor does he say: As David said, but the Holy Spirit through the mouth of David. What then were these? Whatever the one hundred and eighth psalm contains: of which he will also make mention after a little bit. Speaking of Judas, however, he treats the matter both temperately and without vilification. For he does not say "the accursed, the filthy one," but simply indicates what happened. And having introduced the phrase, "This man therefore acquired a field with the wages of unrighteousness," (Acts 1:18) and that becoming prone he was rent, or, as some read, "was split," he did not refer the keeping of it to Judas. For he himself did not buy the field, but the priests, from the silver thrown down by him in the temple. Since, then, these things are the wage of Judas' betrayal, the acquisition is also reckoned to him. And again, since this has been destined for burial, Scripture is fulfilled: "his habitation be desolate." (Ps. 69:25; Acts 1:20) For what is more desolate than a grave? By saying that "and having fallen headlong he burst open in the middle," it showed that, together with the act of betrayal, he had brought about this end through excessive disregard and slackness born of indifference. And when they say that he used a rope and hung himself, the sacred Gospels also record that if he now fell forward and everything that follows, there is no contradiction. For both happened: the cord by which the hanging occurred broke, and therefore he was carried forward onto the ground and had fallen. And insofar as these things are related about him some days later, it is thereby confirmed that they happened immediately after the betrayal.”