Luke 11:52 Woe unto you, lawyers! for ye have taken away the key of knowledge: ye entered not in yourselves, and them that were entering in ye hindered.
The keys to the kingdom are the scriptures. The keys were not given so much as authority but as a responsibility uphold and enforce the rules of the King. It has been established by God who is allowed in and that is contained in scripture. As has been shown here often, the keys were not given to Peter alone but to all apostles. The apostles had the responsibility to bind (hold back) or loose (open up) what had already been established in heaven. An example of binding can be found in Acts 8 where Peter dented the laying on of hands because Simon the Sorcerer offered money to obtain the indwelling of the Holy Spirit. That is not the way established in scripture. Peter was simply applying the rules that had been established by the King.
The apostles had to obey what had been established.
Romans 1:5 through whom we did receive grace and apostleship, for obedience of faith among all the nations, in behalf of his name; 6 among whom are also ye, the called of Jesus Christ;
You're referring to my "twisting of Scripture" in post #2435