1Pet 2:9

“Now the way is unerring, namely, Jesus Christ. For, says He, "I am the way and the life." And this way leads to the Father. For "no man," says He, "cometh to the Father but by Me." Blessed, then, are ye who are God-bearers, spirit-bearers, temple-bearers, bearers of holiness, adorned in all respects with the commandments of Jesus Christ, being "a royal priesthood, a holy nation, a peculiar people," on whose account I rejoice exceedingly, and have had the privilege, by this Epistle, of conversing with "the saints which are at Ephesus, the faithful in Christ Jesus." I rejoice, therefore, over you, that ye do not give heed to vanity, and love nothing according to the flesh, but according to God.”

“And we are just as if drawn out from the fire, when purified from our former sins, and [rescued] from the affliction and the fiery trial by which the devil and all his coadjutors try us; out of which Jesus the Son of God has promised again to deliver us, and invest us with prepared garments, if we do His commandments; and has undertaken to provide an eternal kingdom [for us]. For just as that Jesus (Joshua), called by the prophet a priest, evidently had on filthy garments because he is said to have taken a harlot for a wife, and is called a brand plucked out of the fire, because he had received remission of sins when the devil that resisted him was rebuked; even so we, who through the name of Jesus have believed as one man in God the Maker of all, have been stripped, through the name of His first-begotten Son, of the filthy garments, i.e., of our sins; and being vehemently inflamed by the word of His calling, we are the true high priestly race of God, as even God Himself bears witness, saying that in every place among the Gentiles sacrifices are presented to Him well-pleasing and pure. Now God receives sacrifices from no one, except through His priests.”

“"But you are a chosen generation, a royal priesthood." [1 Peter 2:9] That we are a chosen race by the election of God is abundantly clear. He says royal, because we are called to sovereignty and belong to Christ; and priesthood on account of the oblation which is made by prayers and instructions, by which are gained the souls which are offered to God.”

“Under the old dispensation, the priesthood and the kingship were two different things. No one could be both a king and a priest. But afterwards came the gospel, which united these two offices in Christ. From this it follows that the people whom he has chosen will be both royal and priestly at the same time. Some people wonder how it is possible, seeing that we are called from all the nations on earth, for us to be regarded as one holy people. The answer to this is that although we are from many different nations, the fact that we have all repented of our sins and accepted a common will and a common mind gives those who have repented one doctrine and one faith. When there is a soul and heart common to all believers, then they are called one people.”

“As believers in Christ we have received exactly the same things as he already has. Since he is of the royal tribe and became a high priest, so too have we been enriched by these gifts. Having them, we have become a holy nation and a people for safekeeping, that is, for being kept apart from the world; for we have entered into his rest.”

“Hence also it is said through Moses that whoever is burdened with a hump should by no means be advanced to the priesthood. And all of us who have been redeemed by the blood of Christ are made members of that same high priest. Whence also it is said to us through Peter: "But you are a chosen race, a royal priesthood." But he who bears a hump always gazes at the lowest things. Therefore he is driven from the priesthood, because whoever is intent only on earthly things is himself a witness to himself that he is not a member of the high priest.”

“But you are a chosen race, a royal priesthood, etc. This testimony of praise was once given to the ancient people of God through Moses, which the apostle Peter now rightly gives to the Gentiles because they have believed in Christ, who as the cornerstone has united the Gentiles in that salvation which Israel had in him. He calls them a chosen race because of their faith, to distinguish them from those who, by rejecting the living stone, have themselves become reprobates. And a royal priesthood, because they are united to His body, who is the supreme king and true priest, granting His kingdom to His followers as a king, and as a pontiff cleansing their sins by the sacrifice of His own blood. He names them a royal priesthood, so that they may remember both to hope for an eternal kingdom and to always offer sacrifices of spotless conduct to God. They are also called a holy nation and a people for his possession, in accordance with what the apostle Paul, expounding the sentiment of the prophet, says: But my just one shall live by faith; and if he draws back, my soul shall have no pleasure in him; but we are not of those who draw back unto perdition, but of those who believe to the saving of the soul (Hebrews 10). And in the Acts of the Apostles: The Holy Spirit has made you overseers to shepherd the church of God, which he obtained with his own blood (Acts 20). Therefore, we have been made a people for his possession by the blood of our Redeemer, which was formerly the people of Israel redeemed by the blood of the lamb from Egypt. Hence also, in the following verse, reminding mystically of the old history, he teaches the new people of God to fulfill it spiritually, saying:”

“That you may declare His virtues, etc. For just as those who were freed from Egyptian bondage through Moses sang a triumphal song to the Lord after the crossing of the Red Sea and the drowning of Pharaoh's army, so it is also proper for us, after receiving in baptism the remission of sins, to repay worthy thanks for heavenly benefits. For the Egyptians, who afflicted the people of God, and who are also interpreted as darkness or tribulations, aptly signify our sins, which are erased in baptism. The liberation of the children of Israel and their leading to the promised homeland aligns with the mystery of our redemption, through which we strive towards the light of the heavenly dwelling place, illuminated and guided by the grace of Christ. The light of this grace was also shown by the pillar of cloud and fire, which protected them from the darkness of the nights throughout their entire journey and led them on an indescribable path to the promised homeland's seats.”

“Having disapproved of the bad conduct of the unbelievers, having said that they themselves became guilty of their unbelief, the apostle now turns to the commendation of those who acted rightly and says: you who have acted rightly are a chosen generation, a royal priesthood. He speaks as if to say: those, by their hardness and stubbornness, stumbled over the cornerstone and did not enter together with it into the composition of the building; but you, through your obedience, have become part of the royal priesthood, as a chosen generation, as a holy nation. However, lest he weaken them with excessive praise and lest they think that they became a holy nation by inheritance, that they were deemed worthy of such honor because they descend from Abraham and never stumbled, the apostle, in order to restrain them from such a thought, adds and says: do not think much of lineage; you were chosen into the royal priesthood not on account of Abraham, for those who descended from him had a priesthood separate from the kingdom; you are a holy nation and a chosen generation and are appointed to the royal priesthood not on account of Abraham, but on account of Christ, Who is called both "a priest after the order of Melchizedek" (Ps. 110:4) and "a King meek, righteous, and saving" (Zech. 9:9). Therefore, from Him Who possessed both the one and the other (both the priesthood and the kingdom), you, having been reborn through holy baptism, are rightly called both a chosen generation and a royal priesthood. This you have by the mercy of Him Who called you out of darkness into His marvelous light; therefore, by the works of light, proclaim His excellences to the rest of mankind as well. This, he says, you have by His love for mankind. Therefore it is fitting to apply to you the words: "who once were not a people but are now the people of God; who once had not obtained mercy but now have obtained mercy" (cf. Hos. 2:23). Lest this speech seem harsh, he brings the words of reproach from the prophet Hosea. Therefore, proclaim His excellences by your virtue. And how are they to proclaim them? The Lord Himself teaches this when He says: "so let your light shine before men, that they may see your good works and glorify your Father who is in heaven" (Matt. 5:16). "A people for God's own possession" (εἰς περιποίησιν), that is, a people taken as a possession, or as an inheritance. For all creation belongs to God, but God's own possession consists only of those who have been deemed worthy of this on account of their virtue.”

“But whatever Aristotle's opinion, other enlightened philosophers presupposed the existence of ideas: they were the worshipers of a single God, who placed all good in the supremely good God, and believed in the existence of exemplary virtues from which the cardinal virtues flowed, first into the cognitive power, and thence into the affective, and finally into the operative, according to the phrase "knowledge, will and definitive action," as established by the most noble Plotinus in regard to the school of Plato, and Tullius of the Academic school. And so these were seen to be enlightened and to be capable of enjoying happiness as such. Yet, these men lived in darkness, since they did not have the light of faith; we by contrast do have that light. Hence, in the First Epistle of Peter: You, however, are a chosen race, a royal priesthood, a holy nation, a purchased people; that you may proclaim the perfections of Him who has called you out of darkness into his marvellous light.”

“From all of which it is gathered that the invisible things of God, from the creation of the world, being understood through those things which have been made, are clearly seen: so that those who are unwilling to attend to these things and to know, bless, and love God in all of them are without excuse, since they are unwilling to be transferred from darkness into the admirable light of God. But thanks be to God through Jesus Christ our Lord, who from darkness has transferred us into His admirable light, while through these lights given outwardly to the mirror of our mind, in which divine things shine forth, we are disposed to re-enter.”

“Hear this, you of the laity also, the elect Church of God. For the people were formerly called "the people of God," [Exodus 19:5-6] and "an holy nation." [Hebrews 12:23] You, therefore, are the holy and sacred "Church of God, enrolled in heaven, a royal priesthood, an holy nation, a peculiar people," [1 Peter 2:9] a bride adorned for the Lord God, a great Church, a faithful Church.”

“For in this "do ye appear to the world as lights, in that ye give heed to the Word of life," [Philippians 2:15-16] and thus ye are in truth the praise, and the boast, and the crown of rejoicing, and the delight of good servants in our Lord Jesus Christ. For all who see you will "acknowledge that ye are the seed which the Lord hath blessed;" [Isaiah 61:9] in very deed a seed honourable and holy, and "a priestly kingdom, a holy people, the people of the inheritance," [1 Peter 2:9] the heirs of the promises of God; of things which do not decay, nor wither; of "that which eye hath not seen, and ear hath not heard, and which hath not come up into the heart of man; of that which God hath prepared for those who love Him and keep His commandments." [1 Corinthians 2:9]”

“But you are a chosen generation, a royal priesthood, a holy nation, a people who have obtained mercy, that you may proclaim the virtues of Him who called you out of darkness into His marvelous light: who once were not a people, but now are the people of God: who had not obtained mercy, but now have obtained mercy. "But you are a chosen generation." After criticizing the wickedness of the morals of the unbelievers, and that they had become the cause of their own unbelief, Peter now turns to praise those who had excelled, saying: You are a chosen generation, a royal priesthood: as if to say: They, indeed, through their hardness and disobedience have stumbled upon the cornerstone, but they were not co-built; but you, on the contrary, have been built up into a royal priesthood through obedience: as a chosen generation, as a holy nation. But let them not dissolve themselves with excessive praise: and furthermore, let them not seem to have a certain inherited right as if they were a holy people and the other things that follow: and that they were considered worthy of such honor because they were of the lineage of Abraham, nor had they ever stumbled, he adds, suppressing their pride, and says: Do not be exalted because of your lineage; for you were not chosen for the royal priesthood because of Abraham: for those who descended from him had a priestly tribe distinct from the royal one: therefore, you were not chosen as a people and a lineage, separated for the royal priesthood because of Abraham: for none of these things were said about Abraham, but because of Christ, who is also called a priest according to the order of Melchizedek (Ps. 109:4), a gentle king, just and saving; (Zech. 9:9; Matt. 21:5) who also rode on the colt of an ass. Therefore, to those who have both, by the merit of the sacred baptismal rebirth, you are called a chosen generation and a royal priesthood. This you have from Him who called you out of darkness into His marvelous light. Therefore, through your works made in the light, announce His virtues to other men. Thus, you have this from His kindness, since you are a people who once were not a people: and who have obtained mercy, you who once were not a people have now obtained mercy. Moreover, to ensure that the word is more devoid of hatred, it confirms the word of reproach from Hosea, "Therefore, announce His virtues through good works." (Hos. 2:1) But how do they announce? The Lord Himself teaches when He says: "Let your light shine before men, so that they may see your good works and glorify your Father who is in heaven." (Matt. 5:16) "a people who have obtained mercy," that is, to possession or inheritance. Indeed, all are God's creation, but the possession belongs only to those who are deemed worthy of this benefit by their own deeds, "that you may announce His virtues." Therefore, He says, you are chosen, so that by obedience you may be called heralds of the virtue of Him who called you.”