Yishaya prophesied during the reign of Achaz, the King of Yehudah. This vision is repeated in greater detail in Yechezkel, and is usually associated with Yechezkel, rather than Yishaya. However, in this awesome vision, Yishaya is told of the eventual destruction of Yerushalayim. He is sent to relate this prophecy to the new King Achaz, who would prove to be an evil and wicked monarch.
The concluding prophecy is far more optimistic than the beginning one. Achaz is told not to fear the coming war with Aram and Israel. In the merit of his, yet to be born son, Chizkiyahu, their alliance would fail. Chizkiyahu would eventually be crowned as “The Prince of Peace,” and return the Jewish people to an unprecedented devotion and commitment to Torah scholarship and observance. Unfortunately, the Jewish People would return to their evil ways and Yerushalayim would be destroyed.