[DungeonMaster]

I am Catholic. I am familiar with the Holy Scripture. Why don't you do the comparing and tell me if you see any keys to the Kingdom of Heaven in Matthew 18, or if there is anyone beside St. Peter promised them.

What do keys do? The same thing in both places. We Christians can all bind and loose therefore we all have the same keys.

[annalex]

We Christians can all bind and loose

Keys open gates. The key in Matthew 16 is the key to salvation. Binding and loosing refers to legislation, given first Peter but then the apostles also, and no you were not told to bind and loose, unless you are a bishop and heir of the Apostles, who were given the authority directly.