You seem to have misunderstood what I was saying as well. There are certain vernacular phrases that aren't going to be clear to a non-Aramaic speaker if you want to give them the Aramaic, so naturally you translate it. All of the Gospels except Luke (I believe) have little moments like this, where the writer will use a phrase directly from Aramaic. Mark 15:34, Jesus cries out in Aramaic, and then the translation is given in Greek. Matthew does the same. John 1:21, Jesus gives Peter the name Cephas, which is followed by the translation into Greek. Given that all three do this, it's a bit strange to say that only in Matthew is it proof that it wasn't written in Greek originally.
Oh you seem to have misunderstood. I am skeptical of the claim that any of the Gospels were originally written in Greek. Christ didn't speak in Greek, and all of the Apostles would have had a better grasp of Aramaic or Hebrew.
I never said it was a smoking gun. I put six statements out that collectively cast doubt on the Roman interpretation, and you only responded to one. That was your choice. To then claim that I'm the one 'grasping at straws' is not a sign that you are arguing in good faith.
Okay lets look at your six statements.
1. Jesus uses a different word - a feminine one at that - for 'this rock' than he does for Peter
Christ used Cephas, He did not speak Greek.
2. It is not clear that he refers to Peter as being the rock, as opposed to what Peter has said
Did you not see Mad Dog's post?
'And Jesus answered him, “Blessed are you, Simon Bar-Jona! For flesh and blood has not revealed this to you, but my Father who is in heaven. And I tell you, you are Peter, and on this rock I will build my church, and the powers of death shall not prevail against it. I will give you the keys of the kingdom of heaven, and whatever you bind on earth shall be bound in heaven, and whatever you loose on earth shall be loosed in heaven.”'
Jesus addresses Peter almost 10 times, He was very clearly talking about what He will build upon him, and the authority He will give him.
Is addressing Peter 10 times not clear enough for you? How much clearer does He need to be?
3. Immediately after this he calls Peter Satan in response to what Peter says
He is calling out Satan for tempting Him through Peter, not Peter himself. Christ was explaining that He must go into His passion, and Peter, understandably, lamented this fate and said it shouldn't happen. We know from the Agony in the Garden that His fate was something Christ grappled with, and Satan was the one who repeatedly tempted Him to abandon it. So in Peter's lament He saw the temptations of Satan.
4. As I said on the previous page, the Greek reads better literally as "anything you bind on earth shall have been bound in heaven, and whatever you loose shall have been loosed in heaven," which suggests that God is the binder, and whatever Peter is doing is simply in service of what God has ordained
There you go leaning on Greek again, when Christ did not speak Greek. If His words were meant to be best understood in Greek He would have spoke Greek. Making inferences that rely on a literal interpretation of Greek is dubious at best, especially if the result contradicts the long established views of better scholars.
5. The keys are very clearly connected with binding and loosing - they prevent or permit entry. Therefore the apostles are given the same authority as Peter in ch. 18
It goes beyond preventing and permitting entry. The keys are a symbol of the King's authority being wielded by the Steward. Whatever the Steward proclaims should be treated as if it came from the King. The other Apostles may have similar authority, but they do not have the keys, there may be many administrators, but only one Steward.
6. What does Peter demonstrate here that would be connected with binding or loosing people for the kingdom? His proclamation of Jesus as the Messiah, the Son of God. Believing that message is what enables people to enter the kingdom. Rejecting it is what keeps them out. Therefore, proclaiming the gospel is using the keys, which we see Peter doing in Acts alongside and as the unofficial leader of his fellow apostles, who do likewise.
You have things out of order. Peter's proclamation proceeds him being given the keys and powers, it is not demonstrative of their use because he didn't have them yet.