Isaiah 40-66 Introduction

In this introduction to what is sometimes called Isaiah 2, we discuss the question of authorship of the second half of thos book. We take the approach that the similarity of style and the consistency of the messages in both halves indicate the unity of authorship of this book. However,  as the book was not written by Isaiah himself, over time there were various additions of verses here and there that were added to reference events that were more current.