The last major part of the book of Isaiah is divided into three clearly defined major divisions: (1) Theology Proper—the doctrine of God (Isa 40–48); (2) Soteriology—the doctrine of salvation (Isa 49–57) (appropriately, Isaiah 53 is found in this section), and (3) Eschatology (Isa 58–66)—the events and personages connected with the return of the Lord Jesus to judge His enemies, reign with the redeemed, leading all the way up to the new heavens and new earth of Revelation 21–22. The section of Isaiah that presents Theology Proper (40–48) has very specific characteristics. For instance, as would be expected, some of the attributes of God are set forth: God as Creator, Sustainer, Redeemer and Judge. Also, every chapter in this section contrasts the true, living, omnipotent God Almighty with the lifeless, impotent idols. And importantly for our study at hand: each chapter in this section contains at least one reference to God’s inerrant and powerful Word that completely exceeds anything any wisdom or power collective, fallen man could ever concoct.
Critics of the Bible would never believe the previous paragraph. They long have tried to separate God from His Word by attempting—in their minds only—to diminish God. The Godhead has not granted that possibility. In Mark 8 and parallel passages, the section where Jesus first teaches on his return in glory, Jesus drew a definitive and daring inerasable line in the sand: “For whoever is ashamed of Me and My words in this adulterous and sinful generation, the Son of Man will also be ashamed of him when He comes in the glory of His Father with the holy angels” (Mark 8:48). Try as you may you cannot have one without the other. God and His Word are non-separable. Also, it should be noted that everyone who ever exists will believe someone or some thing, from Eve all the way up to the last individual to die. For instance, after multiple citations of “And God said,” in Genesis 1–2, the first question ever recorded in Scripture was the first challenge to God’s Word—and it came, appropriately enough, from Satan as he asked through the serpent, “Indeed, has God said?” (Gen 3:1). If Eve had responded, “Indeed, God has said, and who are you to question His Word?” things would have turned out differently. As you know, Eve did not respond appropriately to this satanic temptation and utterly unspeakably disastrous consequences cascaded up to this day. The same core questions of the existence and the truthfulness of God’s inerrant Word remains true today; dress it in whatever kind of academic regalia you would like, it still comes down to the same truths: everyone will believe someone or some thing; God says believe Him; Satan says you cannot believe God but should believe him instead (cf. 2 Cor. 11:13-15).