Isaiah’s ministry lasted approximately half a century, continuing through the reigns of Jotham, Ahaz and Hezekiah. We are told through tradition that he suffered a martyr’s death during the reign of King Manasseh. His work brought him into direct contact with kings and priest and he encountered strong opposition from both groups. At times, this opposition was so strong that he was forced to give up speaking in public and confine his ministry to a group of disciples with whom he met privately.
Isaiah expressed convictions that were similar to those spoken to the people of Israel by Amos and Hosea. Despite the immediate dangers that the nation of Judah faced, Isaiah was confident of the ultimate triumph of the Hebrew people. Isaiah was sure that any temporary disaster would not be the final end of the Judean kingdom.