A Jerusalem prophet who saw the Lord in the temple, named his children as warnings, stood before two very different kings, and wrote the words Jesus read aloud in Nazareth.
So who was Isaiah in the Bible? He was Isaiah son of Amoz, a prophet in Jerusalem who spoke for God through the reigns of four kings of Judah, from about 740 BC until just after 700 BC.
He pleaded with one king who would not listen and stood beside another who did. His words about a child called Immanuel, a suffering servant and a messenger anointed by the Spirit became the passages the New Testament reaches for when it explains Jesus.
This page is about the man. For the book itself, read what the book of Isaiah is about.
The book opens by introducing him in a single sentence, and that sentence holds most of what we know.
“The vision concerning Judah and Jerusalem that Isaiah son of Amoz saw during the reigns of Uzziah, Jotham, Ahaz and Hezekiah, kings of Judah.”
Isaiah 1:1Built from the Hebrew word for salvation and a short form of God's covenant name. His name was his message before he said a word.
Amoz, a different name in Hebrew from the prophet Amos. Later rabbinic tradition ties the family to the royal house, which is tradition rather than Scripture.
Jerusalem. He meets kings at the city aqueduct and walks into the palace. A prophet of the capital, unafraid of power.
2 Chronicles 26:22 says he recorded the events of Uzziah's reign, and 2 Chronicles 32:32 points to his vision for the record of Hezekiah's.
Hosea, Amos and Micah worked in the same century, a busy stretch for the prophets of the Bible. Assyria was swallowing nations and small Judah kept looking for someone strong to hide behind. Isaiah's career is one long answer: trust God, not the empire.
Uzziah had reigned for decades, and his death around 740 BC left the nation uneasy. That year Isaiah saw who was really on the throne.
“In the year that King Uzziah died, I saw the Lord, high and exalted, seated on a throne; and the train of his robe filled the temple.”
Isaiah 6:1Seraphim call out holy, holy, holy, and the house fills with smoke. His first reaction is collapse: “Woe to me! I am ruined! For I am a man of unclean lips.”
A seraph touches his mouth with a live coal from the altar and tells him his guilt is taken away. Only then does the question come.
“Then I heard the voice of the Lord saying, ‘Whom shall I send? And who will go for us?’ And I said, ‘Here am I. Send me!’”
Isaiah 6:8Cleansing comes before sending. God meets Isaiah in his honest ruin and makes him clean first. The assignment is hard: the people will hear and not understand. He was called to faithfulness, not to results, which is still what it means to be a prophet in the Bible.
Isaiah's ministry began with a confession, not a credential. The man who wrote some of the most soaring poetry in Scripture started by admitting his own mouth was unclean.
Isaiah's home became part of the message, and he says so plainly.
“Here am I, and the children the Lord has given me. We are signs and symbols in Israel from the Lord Almighty, who dwells on Mount Zion.”
Isaiah 8:18Isaiah calls his wife the prophetess. We are not told her name or whether she prophesied in her own right, and readers take it both ways. The household carried the word together.
His name means a remnant will return. Isaiah brings the boy to meet King Ahaz, a walking sermon: judgment is coming, and it will not be the end.
Roughly, quick to the plunder, swift to the spoil. Before this child could say father or mother, Assyria would strip Damascus and Samaria. The name had a deadline.
When Assyria's commander took Ashdod, God told Isaiah to remove his sackcloth and sandals. He went stripped and barefoot for three years as a sign against Egypt and Cush.
Read that last one in its setting. Judah hoped Egypt and Cush would rescue it from Assyria. Isaiah dressed like a war captive being marched away, which is how many readers understand “stripped” here, and the sign said: this is how the people you trust will end up.
What did the name of Isaiah's son Shear-jashub mean?
Shear-jashub means a remnant will return. It carried hope inside a warning. Quick to the plunder belongs to his brother, and God with us is Immanuel, the sign given to Ahaz in Isaiah 7:14.
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Two of his four kings define his story. One refused a sign. The other asked for one.
The temple vision and the call (Isaiah 6).
Isaiah tells Ahaz to trust God. Ahaz buys Assyria's protection instead (2 Kings 16:7-8).
The barefoot sign against leaning on Egypt (Isaiah 20).
Hezekiah prays, and Isaiah says Assyria will not enter the city (Isaiah 37).
Fifteen more years, a poultice of figs, a shadow turned back (Isaiah 38).
Hezekiah shows them everything, and Isaiah warns it will all go to Babylon (Isaiah 39).
Aram and Israel are threatening Jerusalem and Ahaz is shaking. God offers him any sign he likes, and Ahaz declines in pious language because his mind is made up. Isaiah gives him one anyway.
“Therefore the Lord himself will give you a sign: The virgin will conceive and give birth to a son, and will call him Immanuel.”
Isaiah 7:14Now read verse 16. Before the boy knows enough to choose right from wrong, the lands of the two kings Ahaz dreads will be laid waste. The sign had a clock on it, and within a few years both kingdoms fell to Assyria. The first child was a real child in Ahaz's day, a pledge that God was with Judah in that crisis.
Matthew 1:23 then reads the same words over Mary's son. Quoting the Greek translation, he sees in Jesus the full weight the name always carried: God with us, in person. The first fulfillment gives the second its shape. See the translation question in what Emmanuel means, and Hezekiah's side of the story in who was Hezekiah in the Bible.
The case for more than one author. From chapter 40 the book addresses exiles in Babylon as its present audience, the style shifts, and Cyrus of Persia is named in 44:28 and 45:1, about a century and a half after Isaiah. So many scholars speak of Second Isaiah (40 to 55) and Third Isaiah (56 to 66), written by his disciples. Isaiah 8:16 does mention his teaching sealed among his disciples.
The case for one. Prophets speak ahead of events, and the book names no other author. The New Testament quotes chapters 6, 40 and 53 all as Isaiah, and John 12:38-41 sets 53:1 beside 6:10 and says Isaiah spoke both because he saw Jesus' glory.
The Great Isaiah Scroll, found at Qumran and now in the Israel Museum, holds all sixty-six chapters on one scroll copied before Jesus was born (our post on the Great Isaiah Scroll tells the story). It shows the book was read as one by then, not who wrote which part.
Saying later authors would make the book a forgery and Jesus mistaken. Or saying scholars have proved three books, so the man barely matters.
Isaiah son of Amoz is the root of the whole collection. His voice fills chapters 1 to 39, and the entire scroll stands as Scripture under his name.
At Sound of Heaven we hold the authorship question open, and we say so out loud. God can tell a prophet about Cyrus a century and a half early. That He can does not prove He did, and the argument from chapters 40 to 66 is a real one that faithful believers accept.
What we will not do is make it a test of faith. If Isaiah wrote every word, the book is Scripture. If his disciples carried his vision into the exile under the same Spirit, the book is still Scripture and still rightly called Isaiah. When Jesus and the apostles say Isaiah said, they are naming the scroll the way every synagogue named it, and neither view makes Jesus wrong.
Where we are firm is the man. Isaiah son of Amoz was real, he stood in Jerusalem before kings, and the book that bears his name is read rightly when it is read through Jesus.
The Bible never tells us how Isaiah died. His last scene is Isaiah 39. Everything after that is later tradition, and should be labelled that way.
Hezekiah's son Manasseh reversed his father's reforms, and 2 Kings 21:16 says he shed so much innocent blood that he filled Jerusalem from end to end. Isaiah is not named among the victims.
The Babylonian Talmud says Manasseh put Isaiah on trial, that Isaiah hid inside a cedar, and that the king's men sawed through the tree. In the words of Yevamot 49b, “When the saw reached to where his mouth was, Isaiah died.” An early Christian writing called the Ascension of Isaiah tells a version of the same story.
Hebrews 11:37 remembers faithful people who “were sawed in two.” It names no one, but most readers hear an echo of the Isaiah story, and that is probably right. Manasseh's cruelty is in Scripture. Isaiah's death by the saw is tradition, a moving one about a prophet faithful to the end.
In the synagogue at Nazareth Jesus is handed Isaiah's scroll and finds chapter 61.
“The Spirit of the Lord is on me, because he has anointed me to proclaim good news to the poor. He has sent me to proclaim freedom for the prisoners and recovery of sight for the blind, to set the oppressed free, to proclaim the year of the Lord's favor.”
Luke 4:18-19Then He rolls up the scroll and sits down. Isaiah 61:2 goes on to “the day of vengeance of our God,” and Jesus stops before it. Then: “Today this scripture is fulfilled in your hearing.” Not someday. The Kingdom Isaiah longed for arrived in that room, and that is how we read it: present, active, here.
An Ethiopian official reads the servant passage in his chariot, and Philip starts there to tell him about Jesus.
Matthew applies “he took up our pain” to Jesus healing the sick in Capernaum. We unpack that in by His stripes we are healed.
“Isaiah said this because he saw Jesus' glory and spoke about him.” John reads the throne vision of chapter 6 as a sight of the Son.
Even the new heavens and new earth of 65:17 are covenant language, not a forecast for the far future. The apostles saw them arriving in their own generation as the old covenant order ended with the temple in AD 70. That is how prophecy in the Bible works: spoken to real people, fulfilled when God said it would be.
Isaiah was not a fortune teller. He was a pastor to a frightened city, telling kings and ordinary people that God was more trustworthy than any empire.
John tells us what he was really seeing. The throne, the child called God with us, the wounded servant, the anointed messenger: one face. Isaiah saw Jesus' glory.
If you feel like the man with unclean lips, you are in good company. In Isaiah's story the coal comes before the commission. God cleans first and sends second, and He still does. If you need someone to pray with you about that, ask us for prayer.
For more on the prophets, read who Jeremiah was, how many prophecies Jesus fulfilled and whether there are prophets today.
Isaiah son of Amoz was a Jerusalem prophet cleansed in a temple vision, who made his family a sermon, called two kings to trust God, and saw the glory of Jesus centuries before Bethlehem.
You do not have to clean yourself up first. Tell us what you are carrying and we will pray with you.
Isaiah was the son of Amoz, a prophet in Jerusalem who spoke for God during the reigns of Uzziah, Jotham, Ahaz and Hezekiah, kings of Judah, from about 740 BC to just after 700 BC. He was called in a temple vision, told Ahaz to trust God rather than Assyria, and stood with Hezekiah when Sennacherib surrounded Jerusalem. The New Testament reads his words about Immanuel, the suffering servant and the anointed messenger as pointing to Jesus.
The Hebrew name is Yeshayahu, built from the word for salvation and a short form of God's covenant name, so it means roughly the Lord saves. Isaiah made names part of his preaching. His sons were named a remnant will return and quick to the plunder, swift to the spoil, and his sign to King Ahaz was a child called Immanuel. His own name sums up his book.
Christians disagree. Many scholars credit chapters 40 to 66 to later disciples, because they address exiles in Babylon and name Cyrus of Persia. Others hold that Isaiah foresaw it, as the New Testament quotes the whole book as Isaiah. At Sound of Heaven we hold the question open and do not make it a test of faith. Either way, Isaiah son of Amoz is the root of the book, and all sixty-six chapters are Scripture.
The Bible does not say. A later tradition found in the Talmud and in an early Christian writing called the Ascension of Isaiah says King Manasseh had him killed by sawing him in two. Hebrews 11:37 mentions faithful people who were sawed in two without naming anyone, and many readers hear an echo of Isaiah there. That is reasonable, but it remains tradition, not Scripture.
Isaiah 20 says God told him to take off his sackcloth and sandals, and he went stripped and barefoot for three years. It was a sign aimed at Judah's politics. Judah hoped Egypt and Cush would rescue it from Assyria, and Isaiah dressed like a captive being led away to show what would happen to them. Many readers take stripped to mean without the outer garment.