“So we stand here and with open mouth stare heavenward and invent still other keys. Yet Christ says very clearly in Matt 16:19 that he will give the keys to Peter. He does not say he has two kinds of keys, but he gives to Peter the keys he himself has and no others. It is as if he [Christ] were saying:’ why are you staring heavenward in search of the keys? Do you not understand I gave them to Peter? They are indeed the keys of heaven, but they are not found in heaven. I left them on earth. Don’t look for them in heaven or anywhere else except in Peter’s mouth where I have placed them. Peter’s mouth is my mouth, and his tongue is my key case. His office is my office, his binding and loosing are my binding and loosing’ ”
Wow! Didn’t realize you considered Luther’s writings as scripture! I certainly don’t as he was raised a Catholic after all and obviously retained some of the error of their teaching.