In addition to the New International Version (2011) of the Bible, the following resources were used to help write this sermon: James Montgomery Boice, The Gospel of John, Volume 2, pp. 523-28; F.F. Bruce, The Hard Sayings of Jesus, pp. 21-25; Tyler David, The Hard Sayings of Jesus: Eat My Flesh and Drink My Blood, The Austin Stone Church, Austin, TX; William Hendriksen, The Gospel of John in the New Testament Commentary, pp. 242-44; R. Kent Hughes, John in the Preaching the Word Commentary, pp. 208-10.