The title of this book of the Bible, as is true of the other prophetical books, comes from its writer. The book claims to have come from Isaiah (1:1; 2:1; 7:3; 13:1; 20:2; 37:2, 6, 21; 38:1, 4, 21; 39:3, 5, 8), and Jesus Christ and the apostles quoted him as being the writer at least 21 times, more often than they quoted all the other writing prophets combined.1The name of Isaiah, the son of Amoz, is the only one connected with the book in any of the Hebrew manuscripts or ancient versions. Josephus, the Jewish historian who wrote at the end of the first century A.D., believed that Isaiah wrote this book. He said that Cyrus read the prophecies that Isaiah had written about him and wished to fulfill them.2
There is no record of any serious scholar doubting the Isaianic authorship of the entire book before the twelfth century when Ibn Ezra, a Jewish commentator, did so. With the rise of rationalism, however, some German scholars took the lead in questioning it in the late eighteenth century. They claimed that the basis for their new view was the differences in style, content, and emphases in the various parts of the prophecy. Many scholars have noted that it is not really the text itself that argues for multiple authorship as much as the presence of predictive prophecy in chapters 40-66, which antisupernaturalistic critics try to explain away.3At first, there seemed to these critics to have been two writers whose respective emphases on judgment in chapters 1-39 and consolation in chapters 40-66 pointed to two separate writers, Isaiah and "Deutero-Isaiah."With further study, a theory of three writers ("Trito-Isaiah") emerged because of the differences between chapters 40-55 and 56-66. These critics sensed addresses to three different historical settings in these three parts of the book: Isaiah's lifetime (ca. 739-701 B.C.; chs. 1-39), the Babylonian exile (ca. 605-539 B.C.; chs. 40-55), and the return (ca. 539-400 B.C.; chs. 56-66).4
"Along with what is known as the JEDP theory of the origins of the Pentateuch, the belief in the multiple authorship of the book of Isaiah is one of the most generally accepted dogmas of biblical higher criticism today."5
However, internal and external evidence points to the unity of authorship. The title for God, "holy one of Israel,"which reflects the deep impression that Isaiah's vision in chapter 6 made on him, occurs 12 times in chapters 1-39 and 14 times in chapters 40-66 but only seven times elsewhere in the entire Old Testament. Other key phrases, passages, words, themes, and motifs likewise appear in both parts of the book. Jewish tradition uniformly attributed the entire book to Isaiah as did Christian tradition until the eighteenth century. The Isaiah Dead Sea Scroll, the oldest copy of Isaiah that we have, dating from the second century B.C., has chapter 40 beginning in the same column in which chapter 39 ends.6
Isaiah was arguably the greatest of four prophets who lived and wrote toward the end of the eighth century. Amos and Hosea ministered in the northern kingdom of Israel at this time, and Micah and Isaiah served in Judah.7Isaiah's name, "The Lord (Yahweh) is salvation,"meaning the Lord is the source of salvation, symbolized his message.
". . . in that one name is compressed the whole contents of the book!"8
Isaiah lived in Jerusalem, and that capital city features prominently in his prophecies. His easy access to the court and Judah's kings, revealed in his book, suggests that he ministered to the kings of Judah and may have had royal blood in his veins. Jewish tradition made him the cousin of King Uzziah. His communication gifts and his political connections, whatever those may have been, gave him an opportunity to reach the whole nation of Judah. The prophet was married and had at least two sons to whom he gave names that also summarized major themes of his prophecies (8:18): Shearjashub (a remnant shall return, 7:3), and Maher-shalal-hash-baz (hastening to the spoil, 8:3).
Isaiah received his call to prophetic ministry in the year that King Uzziah died (740 B.C.; ch. 6). He responded enthusiastically to this privilege even though he knew from the outset that his ministry would be fruitless and discouraging (6:9-13). His wife was a prophetess (8:3) probably in the sense that she was married to a prophet; we have no record that she prophesied herself. Isaiah also trained a group of disciples who gathered around him (8:16). His vision of God, which he received at the beginning of his ministry, profoundly influenced Isaiah's whole view of life as well as his prophecies, as is clear from what he wrote.9
The prophet had a very broad appreciation of the political situation in which he lived. He demonstrated awareness of all the nations around his homeland. Judah and Jerusalem were the focal points of his prophecies, but he saw God's will for them down the corridors of time as well as in his own day. He saw that the kingdom that God would establish through His Messiah would include all people. He was a true patriot who denounced evils in his land as well as giving credit where that was due. He condemned religious cults yet remained neutral politically. His understanding of theology was profound. He set forth the wonder and grandeur of Yahweh more ably than any other biblical writer. As a writer, Isaiah is without a peer among the Old Testament prophets. He was a poetic artist who employed a large vocabulary and many literary devices to express his thoughts beautifully and powerfully. Most of his prophecies appear to have been messages that he delivered, which means that he was probably also a powerful orator.
There is no historical record of Isaiah's death. Jewish tradition held that he suffered martyrdom under King Manasseh (697-642 B.C.) because of his prophesying. The early church father Justin Martyr (ca. A.D. 150) wrote that the Jews sawed him to death with a wooden saw (cf. Heb. 11:37).10Another ancient source says he took refuge in a hollow tree, but his persecutors discovered and extracted him. This may account for the unusual method of his execution.
