“And I will give unto thee the keys of the kingdom of heaven: and whatsoever thou shalt bind on earth shall be bound in heaven: and whatsoever thou shalt loose on earth shall be loosed in heaven.”Mathew 16:19
Who has the keys?
“I am he that lived, and was dead; and, behold, I am alive for evermore, Amen; and have the keys of hell and of death.” Revelation 1:18
“And the key of the house of David will I lay upon his shoulder; so he shall open, and none shall shut; and he shall shut, and none shall open.” Isiah 22:22
“And to the angel of the church in Philadelphia write; These things said he that is holy, he that is true, he that hath the key of David, he that opened, and no man shuttled; and shuttled, and no man opened;” Revelation 3:7
“And I will give unto thee the keys of the kingdom of Heaven; and whatsoever thou shalt bind on earth shall be bound in Heaven; and whatsoever thou shalt loose on earth shall be loosed in Heaven.” The Roman church makes a wrong application of these words of Christ. They claim that he addressed them especially to Peter. Hence he is represented in works of art as carrying a bunch of keys, which is a symbol of trust and authority given to ambassadors and others in high positions. The words of Christ: “I will give unto thee the keys of the kingdom of Heaven,” were not addressed to Peter alone, but to the disciples, including those who compose the Christian church in all ages. Peter was given no preference nor power above that of the other disciples. Had Jesus delegated any special authority to one of them, we would not find them so frequently contending among themselves as to who should be greatest. They would have at once submitted to the wish of their Master, and paid honour to the one whom he had selected as their head.” The Spirit Of The Prophecy Volume Two 273.2
“The keys of the kingdom of heaven” are the words of Christ. All the words of Holy Scripture are His, and are here included. These words have power to open and to shut heaven. They declare the conditions upon which men are received or rejected. Thus the work of those who preach God’s word is a savour of life unto life or of death unto death. Theirs is a mission weighted with eternal results.” The Desire Of Ages 413.6