Isaiah was a prophet, we was called during a dark time of Judah’s history. He spoke the words of God to the people despite what false prophets and sorcerers or seers foresaw and prophesied over them and the king to keep them happy and comfortable. Eventually he had served under multiple different kings and he had to diminish his public speaking by sending a group of disciple to the temple to preach the real message of God. He died a Martyrs death.
.