Author: Isaiah 1:1 identifies the author of the Book of Isaiah as the Prophet  Isaiah.

Date of Writing: The Book of Isaiah was written  between 701 and 681 B.C.

Purpose of Writing: The Prophet  Isaiah was primarily called to prophesy to the Kingdom of Judah. Judah was going  through times of revival and times of rebellion. Judah was threatened with  destruction by Assyria and Egypt, but was spared because of God’s mercy. Isaiah  proclaimed a message of repentance from sin and hopeful expectation of God’s  deliverance in the future.

Key Verses: Isaiah 6:8, “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 7:14,  “Therefore the Lord himself will give you a sign: The virgin will be with child  and will give birth to a son, and will call him Immanuel.”

Isaiah 9:6, “For to us a child is born, to us a son is  given, and the government will be on his shoulders. And he will be called  Wonderful Counselor, Mighty God, Everlasting Father, Prince of Peace.”

Isaiah 14:12-13, “How  you have fallen from heaven, O morning star, son of the dawn! You have been cast  down to the earth, you who once laid low the nations! You said in your heart, “I  will ascend to heaven; I will raise my throne above the stars of God; I will sit  enthroned on the mount of assembly, on the utmost heights of the sacred  mountain.”

Isaiah  53:5-6, “But he was pierced for our transgressions, he was crushed for our  iniquities; the punishment that brought us peace was upon him, and by his wounds  we are healed. We all, like sheep, have gone astray, each of us has turned to  his own way; and the LORD has laid on him the iniquity of us all.”

Isaiah 65:25, “The wolf and  the lamb will feed together, and the lion will eat straw like the ox, but dust  will be the serpent’s food. They will neither harm nor destroy on all my holy  mountain, says the LORD.”

Brief Summary: The Book of  Isaiah reveals God’s judgment and salvation. God is “holy, holy, holy” (Isaiah 6:3), and therefore He  cannot allow sin to go unpunished (Isaiah 1:22:11-205:30; 34:1-2; 42:25). Isaiah portrays  God’s oncoming judgment as a “consuming fire” (Isaiah 1:3130:33).

At the same  time, Isaiah understands that God is a God of mercy, grace, and compassion (Isaiah 5:25; 11:16; 14:1-2; 32:2; 40:3; 41:14-16). The nation of  Israel (both Judah and Israel) is blind and deaf to God’s commands (Isaiah 6:9-10; 42:7). Judah is compared to a vineyard that should be,  and will be, trampled on (Isaiah  5:1-7). Only because of His mercy and His promises to Israel, will God not  allow Israel or Judah to be completely destroyed. He will bring restoration,  forgiveness, and healing (43:2; 43:16-19; 52:10-12).

More than any other  book in the Old Testament, Isaiah focuses on the salvation that will come  through the Messiah. The Messiah will one day rule in justice and righteousness  (Isaiah 9:7; 32:1). The reign of the Messiah will bring peace and  safety to Israel (Isaiah  11:6-9). Through the Messiah, Israel will be a light to all the nations (Isaiah 42:6; 55:4-5). The Messiah’s  kingdom on earth (Isaiah chapter 65-66) is the goal towards which all of the  Book of Isaiah points. It is during the reign of the Messiah that God’s  righteousness will be fully revealed to the world.

In a seeming paradox,  the Book of Isaiah also presents the Messiah as one who will suffer. Isaiah  chapter 53 vividly describes the Messiah suffering for sin. It is through His  wounds that healing is achieved. It is through His suffering that our iniquities  are taken away. This apparent contradiction is solved in the Person of Jesus  Christ. In His first advent, Jesus was the suffering servant of Isaiah chapter  53. In His second advent, Jesus will be the conquering and ruling King, the  Prince of Peace (Isaiah  9:6).

Foreshadowings: As stated above, chapter 53  of Isaiah describes the coming Messiah and the suffering He would endure in  order to pay for our sins. In His sovereignty, God orchestrated every detail of  the crucifixion to fulfill every prophecy of this chapter, as well as all other  messianic prophecies of the Old Testament. The imagery of chapter 53 is poignant  and prophetic and contains a complete picture of the Gospel. Jesus was despised  and rejected (v. 3; Luke 13:34John 1:10-11), stricken by  God (v.4; Matthew  27:46), and pierced for our transgressions (v. 5; John 19:34; 1 Peter  2:24). By His suffering, He paid the punishment we deserved and became for  us the ultimate and perfect sacrifice (v. 5; Hebrews  10:10). Although He was sinless, God laid on Him our sin, and we became  God’s righteousness in Him (2  Corinthians 5:21).

Practical Application: The Book  of Isaiah presents our Savior to us in undeniable detail. He is the only way to  heaven, the only means of obtaining the grace of God, the only Way, the only  Truth, and the only Life (John 14:6; Acts 4:12). Knowing the price  Christ paid for us, how can we neglect or reject “so great a salvation”? (Hebrews 2:3). We have only a  few, short years on earth to come to Christ and embrace the salvation only He  offers. There is no second chance after death, and eternity in hell is a very  long time.

Do you know people who claim to be believers in Christ who  are two-faced, who are hypocrites? That is perhaps the best summary of how  Isaiah viewed the nation of Israel. Israel had an appearance of righteousness,  but it was a facade. In the Book of Isaiah, the Prophet Isaiah challenges Israel  to obey God with all of their heart, not just on the outside. Isaiah’s desire  was that those who heard and read his words would be convicted to turn from  wickedness and turn to God for forgiveness and healing.