What is the book of Isaiah about? Who was Isaiah in the Bible? In the second portion of his prophecy, Isaiah promises that God will deliver his people and the whole world through the great Servant of the Lord, whom believers today know as Jesus Christ. God promised his people that this great Servant would redeem the whole world by his innocent suffering and death. The prophecy of Isaiah concludes with God's promises of future glory for all who believe. Want to learn more? If you're wondering what the book of Isaiah is all about, this helpful resource is for you! Isaiah 40-66 is a reliable Bible commentary. It's down to earth, clearly written, easy to read and understand, and filled with practical and modern applications to Scripture. It also includes the complete text of Isaiah chapters 40-66 from the book of Isaiah from the NIV Bible. The Christ-centered commentaries following the Scripture sections contain explanations of the text, historical background, illustrations, and archaeological information. Isaiah 40-66 is a great resource for personal or group study! This book is a part of The People's Bible series from Northwestern Publishing House.