Manasseh Slays Isaiah and the Three Scriptural Contradictions

It was taught: Shimon ben Azzai said: I found a scroll of hidden teachings in Jerusalem, and in it was written, "Manasseh killed Isaiah." Rabbi Meidan said: He judged him and executed him. He said to him: Your teacher Moses said, "For no man shall see Me and live" (Exodus 33:20), and you said, "And I saw the LORD" (Isaiah 6:1); your teacher Moses said, "As the LORD our God whenever we call upon Him" (Deuteronomy 4:7), and you said, "Seek the LORD while He may be found" (Isaiah 55:6), as if He is not always near; your teacher Moses said, "The number of your days I will fulfill" (Exodus 23:26), and you said, "And I will add fifteen years to your days" (2 Kings 20:6). Isaiah said: I know that he will not accept it from me, and if I answer I will make him a willful sinner. He spoke a divine name and was swallowed into a cedar. They brought the cedar and sawed it. When the saw reached his mouth he died, because he had said, "And I dwell among a people of unclean lips" (Isaiah 6:5). In any case the verses contradict one another. "And I saw the LORD": this is a matter of dispute among the Tannaim, for it was taught: all the prophets gazed through a dim glass, but Moses our teacher gazed through a clear glass. "Seek the LORD while He may be found": this refers to the individual, that to the community; and when does this apply to an individual? During the ten days between Rosh Hashanah and Yom Kippur. "The number of your days I will fulfill": this is a matter of dispute among the Tannaim, for we learned: "The number of your days I will fulfill" corresponds to two generations; if one merits, they complete it for him; if he does not merit, they reduce it for him, the words of Rabbi Akiva. And the Sages say: if one merits, they add for him; if he does not merit, they reduce for him. They said to Rabbi Akiva: but it is already said, "And I will add to your days" (2 Kings 20:6). He said to them: they added to him from his own; know this, for a prophet stands and prophesies, "Behold, a son shall be born to the house of David, Josiah by name" (1 Kings 13:2), and Manasseh had not yet come. And the Rabbis: is it written "born to Hezekiah"? It is written "to the house of David" whether from Hezekiah or from another person.