The prophet Isaiah played an important role in the development and expression of Judaism as a dynamic, living religion through the impact of his works. The impact of Isaiah is evident in both the development and expression of Judaism both in his time and in modern society, as his teachings, for the Jewish people, prove to be relevant to the times. Considered among Jews as one of the greatest prophets, Isaiah has contributed to and affected the life of adherents in the Jewish faith through his political and religious influence, his prophetic messages concerning Judah, and his advocacy for social justice. Isaiah, through his teachings, actions and writings, has played an important and relevant role in the development and expression of Judaism.
Isaiah’s contribution to the development and expression of Judaism was heavily influenced by the political and religious context of his time. In the midst of political and religious instability in Judah’s history, Isaiah, was a recognisable source of hope and guidance, and paved the way for the expression of modern Judaism. The evident political and religious instability, was to be vastly influenced by Isaiah’s works. Isaiah took an active role in the development and expression of Judaism in his time, through his influence in the guidance of the aristocracy, providing guidance even for the kings. “Then the word of the LORD came to Isaiah: Go and tell Hezekiah… ‘I have heard your prayers and seen your tears… I will deliver you and this city from the hand of the king of Assyria” (Isaiah 38:4-6) Isaiah, as the mediator between God and his people, forespoke guidance both politically and religiously, redirecting the Jews back to Mosaic Law. As a result, Isaiah instilled within the hearts of Jews faith in God, in a time of suffering and religious apathy.