In addition to the New International Version (2011) of the Bible, the following resources were used to write this sermon: Paul D. Hanson, Isaiah 40-66 in the Interpretation Commentary, pp. 133-35; Bill Hybels, Just When I Needed You Most, Willow Creek Community Church, South Barrington, IL; Claus Westermann, Isaiah 40-66 in The Old Testament Library, pp. 217-20; Edward J. Young, The Book of Isaiah, Volume 3/Chapters 40-66, pp. 283-86.