Mainly because he prophesied about Jesus Christ, 700 years before Jesus' birth. In Isaiah chapter 7, he told of his birth, and in chapter 53, he tells of the passion.
Prince of Prophets
The Prophet Isaiah is attributed to writing only one book in the Canonized Bible (the bible with 66 Books and Old & New testament divisions), the Book of Isaiah.
Jeremiah is not consider the eagle prophet, it is Isaiah that's consider to be the eagle eye prophet do to the fact that he was able to look through the corridors of time and see Christ some 700 years prior.
Advent is a time for preparing for the remembrance of the birth of Christ. Isaiah spoke of the coming of the Messiah, and thus is very suitable for contemplation in the season.
The Old Testament prophet Isaiah wrote about the suffering servant in chapters 52 and 53. This passage is often referred to as the "Suffering Servant" passage and is believed by many Christians to be a prophecy about Jesus Christ.
actually you do not need to get a Hebrew scripture to read the book of Isaiah. In the old testament in the Bible that would be the 23rd book. The words spoken by the prophet have been kept accurately troughout the ages.
The prophecy that salvation would come through the suffering servant of the Lord is found in the Book of Isaiah in the Hebrew Bible (Old Testament). Isaiah himself is credited with stating this prophecy, specifically in Isaiah 53.
Because Christians believe that the Bible is the inspired words of their God, written by humans.
Isaiah 40:3 - The voice of one crying in the wilderness: "Prepare the way of the Lord; Make straight in the desert A highway for our God."Matthew 3:3 - For this is he who was spoken of by the prophet Isaiah, saying: "The voice of one crying in the wilderness: 'Prepare the way of the Lord; Make His paths straight.' "Luke 3:4 - as it is written in the book of the words of Isaiah the prophet, saying: "The voice of one crying in the wilderness: 'Prepare the way of the Lord; Make His paths straight.John 1:23 - He said: "I am 'The voice of one crying in the wilderness: "Make straight the way of the Lord," ' as the prophet Isaiah said."[Quotes from NKJV]
Isaiah did not mention Jesus or any other prophets. First Isaiah stated that he wrote about that which he saw "concerning Judah and Jerusalem in the days of Uzziah, Jotham, Ahaz, and Hezekiah, kings of Judah." In other words, he was not prophesying nor foreseeing the future.
The Book of Isaiah is primarily about the Babylonian Exile, although the prophet Isaiah lived 150 years before the Exile. Scholars long ago solved this puzzle. They say that only chapters 1 to 39 were really written by Isaiah of Jerusalem, with numerous later additions. Because of other authors, Isaiah is often called First Isaiah or Proto-Isaiah. Chapters 40 to 55 record the words of a sixth century prophet living in exile in Babylon, called Deutero-Isaiah or Second Isaiah. Finally, chapters 56 to 66, from the post-Exilic period, are either a continuation of the work of Deutero-Isaiah or written by one of his disciples, now known as Trito-Isaiah or Third (III) Isaiah. Scholars say that there are striking stylistic variations and differences in vocabulary between I Isaiah and II Isaiah. First Isaiah's vocabulary is limited and his utterances are designed for delivery to specific audiences. Second Isaiah's work is more uniform and lyrical in style, more hymnic in quality, and more extensive in vocabulary. His chapters form a unity of thought and emphasis centred in the restoration from Babylonian captivity.
Isaiah chapters 40-55 record the words of a sixth century prophet living in exile in Babylon, called Second (II) Isaiah, or Deutero-Isaiah. The Babylonian Exile was a peiod of intense scrutiny of Judaism's religious beliefs. In this opening chapter of his original work, since merged into the book by Isaiah son of Amoz, Second Isaiah muses about the nature of God. This is not agnosticism, but merely an introduction to what the author will say.