Why is Peter getting these keys? Well not these pictured here, but you get the idea.
We go to the Bible. "I will give you the keys of the kingdom of heaven, ..." (Mt 16:19) What's going on here? To understand this we have to look back into the Old Testament. "I will thrust you from your office, and you will be cast down from your station. In that day I will call my servant Eliakim the son of Hilkiah, and I will clothe him with your robe, and will bind your girdle on him, and will commit your authority to his hand; and he shall be a father to the inhabitants of Jerusalem and to the house of Judah. And I will place on his shoulder the key of the house of David; he shall open, and none shall shut; and he shall shut, and none shall open." (Is 22:19-22)
Waaaay back then it was normal for there to be one way in and out of the city. In that "way" it was normal for there to be a door there. It makes sense if you're gonna have a door to put a lock on it. That lock most likely required a key.
Now the Kings back then had many servants that held an office of minister. But the kings would have one Office of prime minister. He was the top minister, hence the word "prime" before "minister". Now the prime minister held the authority of the king. It did not make him equal to the king. But when the king was not there, the prime minister spoke on behalf of the king. His decisions held the same authority. This office was passed on.
So lets see whats going on here. Isaiah is king at this time in the Bible. The Davidic king. Eliakim is made prime minister of the Davidic kingdom. Ok well lets see whats going on in Mt16:19. "I will give you the keys of the kingdom of heaven,..." It seems Jesus is giving the keys of the kingdom of heaven to Peter. If Jesus is the Davidic king, then heaven would be the Davidic kingdom.
Talk at ya Later