- O: The Oprah Magazine, "Oprah talks to Madonna," (January, 2004), 120.
- Aangehaald in Josh McDowell, The Resurrection Factor (San Bernardino, CA: Here's Life Publ., 1981), 1.
- Aangezien in William R. Bright, Jesus and the Intellectual (San Bernardino, CA: Here's Life Publ., 1968), 33.
- Aangehaald in Rick Warren, The Purpose Driven Life (Grand Rapids, MI: Zondervan, 2002), 17.
- Aangehaald in Michka Assayas, Bono in Conversation (New York: Riverhead Books, 2005), 203.
- Soren Kierkegarrd, Philosophical Fragments, trans. Howard V. Hong and Edna H. Hong (Princeton, NJ: Princeton University Press, 1985), 26-28.
- C. S. Lewis, Mere Christianity (San Francisco: Harper, 2001), 160.
- Ray C. Stedman, God's Loving Word (Grand Rapids, MI: Discovery House, 1993), 50.
- Aangehaald in Assayas, 204.
- R. C. Sproul, Reason to Believe (Grand Rapids, MI: Lamplighter, 1982), 44.
- Johannes 3:16
- Johannes 1:12
- Jesaja 59:2
- Romeinen 5:8
- Assayas, Ibid.
- Ravi Zacharias, Jesus among Other Gods (Nashville: Word, 2000), 158.
- Martha T. Moore and Dennis Cauchon, "Delay Meant Death on 9/11," USA Today, Sept. 3, 2002, 1A.
- Charles W. Colson, Born Again (Old Tappan, NJ: Chosen, 1976), 114.
- Ravi Zacharias, A Shattered Visage: The Real Face of Atheism (Grand Rapids, MI: Baker, 2004), 155.
- Lewis, 56.
- Colson, 129