The Prophet Isaiah — Gustave Doré, Doré's English Bible (1866), public domain
Isaiah — The gospel prophet — a Judean court-prophet across Uzziah, Jotham, Ahaz, and Hezekiah (c. 740–700 BC) who sees past Assyria to Babylon and past Babylon to the Messiah. Sixty-six chapters divided into the Book of Judgment (1–39) and the Book of Comfort (40–66), climaxing in the Servant wounded for our transgressions.
Canon
Old Testament
Author
Isaiah ben Amoz — Heb. Yəša'yāhû, 'Yahweh saves' (1:1); Jewish tradition (b. Megillah 10b; b. Yevamot 49b) holds he was of royal blood and was martyred 'sawn asunder' under Manasseh — a tradition, not Scripture
Date
Ministry c. 740–700 BC — call 'in the year that king Uzziah died' (6:1) through Sennacherib's 701 BC siege of Jerusalem (36–37); spanning the reigns of Uzziah, Jotham, Ahaz, and Hezekiah (1:1)
“And when the servants of King Hezekiah came to Isaiah, the name of the Prophet was silent again, so that he would preserve the humility that had been started. And Isaiah anticipated them: for with the same spirit with which he knew the future, he had also heard the absent king: and he said what they should respond to their Lord, humbled in this trust of conscience. He said, 'Say to your master, who is your Lord; for my Lord says these things: Do not fear the words by which not you, but I am blasphemed.
“So the servants of King Hezekiah came to Isaiah. And delivered the above message to him from the king: these servants are mentioned Isa 37:2. Musculus thinks that the third and fourth verses are the words of the king to the messengers, and not of the messengers to the prophet; and that the first clause of the "third" verse should be rendered, "that they might say unto him", &c.; and having received their instructions, here is an account of their going to the prophet with them, which they delivered to him, and which it was not necessary to repeat.