The key is the symbol of the authority of the
vizier (the major domo/ prime minister/ treasurer/ vicar) of a royal household. He
literally carried the keys attached to his belt, with which to open the storehouses and
other treasuries on behalf of the king. In Scripture only the Messiah and the Apostle
Peter are spoken of as having this authority.
The Messiah is the Vizier of the great King, the
Eternal Father, bringing to earth the treasure of Redemption from
the Storehouse of the Father's mercy. Peter is the Messiah's Vizier,
the Vicar of Christ, who through his successors in every age is head
of the Church on earth which distributes those treasures in the name
of the Lord. (Isaiah 22:22, Rev 3:7, Mt 16:19) to the other apostles is given the power to bind and to loose,
but not the supreme power of the keys (Mt 18:18).
I will place the key of the House of David on his shoulder; when he opens, no one shall
shut, when he shuts, no one shall open.
"To the angel of the church in Philadelphia, write this: " 'The holy one, the
true, who holds the key of David, who opens and no one shall close, who closes and no one
shall open, says this:
Matthew 16:19 :
I will give you the keys to the kingdom of heaven. Whatever you bind on earth shall be
bound in heaven; and whatever you loose on earth shall be loosed in heaven."
Matthew 18:18 :
Amen, I say to you, whatever you bind on earth shall be bound in heaven, and whatever you
loose on earth shall be loosed in heaven.