[the808bass]

I'm assuming you mean that the name change did not give Peter the ability to forgive sins? Because he and the other apostles were, elsewhere in the gospels, certainly given this authority by Jesus.

I disagree. They were given the authority to proclaim what had already happened in heaven. Big difference.

[malakhi]

I disagree. They were given the authority to proclaim what had already happened in heaven. Big difference.

That is not what the passage says. Read it again:

If you forgive the sins of any, they are forgiven; if you retain the sins of any, they are retained." (John 20:23)

"If you forgive the sins of any, they are forgiven". Seems pretty straightforward. Nothing to suggest a mere rubber-stamp of what already has been decided in Heaven.