New Defender's Study Bible Notes
39:8 in my days. This is supposed to be the end of the writings of the “first Isaiah,” with the “second Isaiah” being the author of the later chapters. However, this idea is a humanistic invention, with no warrant in the Hebrew text itself. Even the Dead Sea Scrolls, in common with other extant texts of the Hebrew Scriptures, show no break at all between Isaiah 39 and 40.