"Isaiah" - The pre-translation means "Jehovah's Salvation" or "Jehovah works salvation." 

Isaiah, the son of Amos, was the greatest prophet of the pre-Christian period. 

Isaiah preached the salvation of the nations from sin by the fulfillment by the nations of the Will of Jehovah God.

Isaiah prophesied the entire history of the development of the relationship between man and God, including extensive descriptions of the future Kingdom of God's Will on earth.