The book of Isaiah is like a small version of the Bible.
Isaiah = 66 chapters
Bible = 66 books (1-39 OT, 40-66 NT)
Book #40 = Matthew
Isaiah 40:3, A voice cries: “In the wilderness prepare the way of the LORD; make straight in the desert a highway for our God.”
Book #66 = Revelation
Isaiah 66:22-24, “For just as the new heavens and the new earth which I make will endure before Me,” declares the Lord, “… On the corpses of the men who have transgressed against Me. For their worm will not die And their fire will not be quenched; …”