Matthew 16:19

Then He mentions also another honor. "And I also will give thee the keys of the heavens." But what is this, "And I also will give thee?" "As the Father hath given thee to know me, so will I also give thee." And He said not, "I will entreat the Father" (although the manifestation of His authority was great, and the largeness of the gift unspeakable), but, "I will give thee." What dost Thou give? tell me. "The keys of the heavens, that whatsoever thou shalt bind on earth, shall be bound in Heaven, and whatsoever thou shalt loose on earth, shall be loosed in Heaven." How then is it not "His to give to sit on His right hand, and on His left," when He saith, "I will give thee"? Seest thou how He, His own self, leads Peter on to high thoughts of Him, and reveals Himself, and implies that He is Son of God by these two promises? For those things which are peculiar to God alone, (both to absolve sins, and to make the church incapable of overthrow in such assailing waves, and to exhibit a man that is a fisher more solid than any rock, while all the world is at war with him), these He promises Himself to give; as the Father, speaking to Jeremiah, said, He would make him as "a brazen pillar, and as a wall;" but him to one nation only, this man in every part of the world. I would fain inquire then of those who desire to lessen the dignity of the Son, which manner of gifts were greater, those which the Father gave to Peter, or those which the Son gave him? For the Father gave to Peter the revelation of the Son; but the Son gave him to sow that of the Father and that of Himself in every part of the world; and to a mortal man He entrusted the authority over all things in Heaven, giving him the keys; who extended the church to every part of the world, and declared it to be stronger than heaven. […]

As the Assyrians devastated the Jews, so did the Saracens occupy the Churches of Antioch, Jerusalem, Alexandria, Constantinople, and all the way to Sicily. As the Ten Tribes fell and broke away from the house of David, so did these Churches fall and break away …

To that which is objected, that the same word was said to the Apostles which had previously been said to Peter — for in Matthew 16 it is said to Peter, I will give to you the keys, and whatsoever you shall bind upon earth, …

Peter therefore shall enter, who received the keys. Yet not alone: for he will also introduce me, if he shall have willed it, and will exclude another whom perhaps he shall have willed, in the knowledge and power given to him from above. And what …

And I will give to thee the keys of the kingdom of heaven. Here the second gift is set forth which Christ gave to Peter according to his humanity. For he founded the Church on earth, and established Peter as his vicar, so that he …

(interlin.) It follows, And whatsoever thou shalt bind; that is, whomsoever thou shalt judge unworthy of forgiveness while he lives, shall be judged unworthy with God; and whatsoever thou shalt loose, that is, whomsoever thou shalt judge worthy to be forgiven while he lives, shall obtain forgiveness of his sins from God. (ap. Anselm.) This power was committed specially to Peter, that we might thereby be invited to unity. For He therefore appointed him the head of the Apostles, that the Church might have one principal Vicar of Christ, to whom the different members of the Church should have recourse, if ever they should have dissensions among them. But if there were many heads in the Church, the bond of unity would be broken. Some say that the words upon earth denote that power was not given to men to bind and loose the dead, but the living; for he who should loose the dead would do this not upon earth, but after the earth.

For as with a zeal beyond the others he had confessed the King of heaven, he is deservedly entrusted more than the others with the keys of the heavenly kingdom, that it might be clear to all, that without that confession and faith none ought to enter the kingdom of heaven. By the keys of the kingdom He means discernment and power; power, by which he binds and looses, discernment, by which he separates the worthy from the unworthy. But this power of binding and loosing, though it seems given by the Lord to Peter alone, is indeed given also to the other Apostles, and is even now in the^ Bishops and Presbyters in every Church. (vid. Matt. 18:18.) But Peter received in a special manner the keys of the kingdom of heaven, and a supremacy of judicial power, that all the faithful throughout the world might understand that all who in any manner separate themselves from the unity of the faith, or from communion with him, such should neither be able to be loosed from the bonds of sin, nor to enter the gate of the heavenly kingdom.

And I will give unto thee the keys of the kingdom of the heavens: and whatsoever thou shalt bind on earth shall be bound in the heavens; and whatsoever thou shalt loose on earth shall be loosed in the heavens. He spoke as God, with …

Christ instituted orders by first giving the power of binding and loosing the sins of the human race and the power of confecting the Sacrament of the altar. To all those established in the sacerdotal order, and to them alone, is given the power of …

And I will give unto thee the keys of the kingdom of heaven,.... By the kingdom of heaven is meant the Gospel, which comes from heaven, declares the king Messiah to be come, speaks of things concerning his kingdom, is the means of setting it up, and enlarging it, displays the riches of his grace, and gives an account of the kingdom of heaven, and of persons' right unto it, and meetness for it.

I will give thee the keys of the kingdom of heaven - Indeed not to him alone, (for they were equally given to all the apostles at the same time, John xx, 21, 22, 23;) but to him were first given the keys both of doctrine and discipline. He first, after our Lord's resurrection, exercised the apostleship, Acts i, 15.

"Now," saith Christ, "this is that great truth upon which I will build my church. " 1. Take away this truth itself, and the universal church falls to the ground. If Christ be not the Son of God, Christianity is a cheat, and the church is a mere chimera; our preaching is vain, your faith is vain, and you are yet in your sins, 1 Cor. xv.

It is not any civil, secular power that is hereby conveyed, Christ's kingdom is not of this world; their instructions afterward were in things pertaining to the kingdom of God, Acts i.

The keys of the kingdom - By the kingdom of heaven, we may consider the true Church, that house of God, to be meant; and by the keys, the power of admitting into that house, or of preventing any improper person from coming in. In other words, the doctrine of salvation, and the full declaration of the way in which God will save sinners; and who they are that shall be finally excluded from heaven; and on what account.

There are words in this passage which have led to painful differences and divisions among Christians. Men have striven and contended about their meaning till they have lost sight of all charity, and yet have failed to carry conviction to one another’s minds. Let it suffice us to glance briefly at the controverted words, and then pass on to more practical lessons. What then are we to understand, when we read that remarkable saying of our Lord’s, “Thou art Peter, and upon this rock I will build my church?”

As first in confessing Christ, Peter got this commission before the rest; and with these "keys," on the day of Pentecost, he first "opened the door of faith" to the Jews, and then, in the person of Cornelius, he was honored to do the same to the Gentiles. Hence, in the lists of the apostles, Peter is always first named.

There are words in this passage which have led to painful differences and divisions among Christians. Men have striven and contended about their meaning till they have lost sight of all charity, and yet have failed to carry conviction to one another’s minds. Let it suffice us to glance briefly at the controverted words, and then pass on to more practical lessons. What then are we to understand, when we read that remarkable saying of our Lord’s, “Thou art Peter, and upon this rock I will build my church?” Does it mean that the apostle Peter himself was to be the foundation on which Christ’s church was to be built? Such an interpretation, to say the least, appears exceedingly improbable. To speak of an erring, fallible child of Adam as the foundation of the spiritual temple is very unlike the ordinary language of Scripture. Above all, no reason can be given why our Lord should not have said, “I will build my church upon thee, ” if such had been his meaning, instead of saying, “I will build my church upon this rock .” The true meaning of the “rock” in this passage appears to be the truth of our Lord’s messiahship and divinity, which Peter had just confessed. It is as though our Lord had said, “thou art rightly called by the name Peter, or stone, for thou hast confessed that mighty truth on which, as on a rock, I will build my church.” [There is nothing modern, or peculiarly Protestant, in the view here maintained. It was held by Chrysostom long ago. It was taught by Ferus, a famous Roman Catholic preacher of the Franciscan order, at Mainz in the sixteenth century, in his homilies on St. Matthew. It may be well to remark in this place, that it is a complete delusion to suppose that the Scriptures can be interpreted according to the “unanimous consent of the Fathers.” There is no such unanimous consent!

Christ was declaring His church would have spiritual keys (authority) to lock the gates (government) of hell and open the gates (government) of heaven.

But the other image of the keys has an exactitude that has hardly been exactly noticed. The keys have been conspicuous enough in the art and heraldry of Christendom; but not every one has noted the peculiar aptness of the allegory. We have now reached …

But even with that we return to the more specially Christian symbol in the same tradition; the perfect pattern of the keys. This is a historical and not a theological outline, and it is not my duty here to defend in detail that theology, but …