In addition to the New International Version (2011) of the Bible, the following resources were used to help write this sermon: James Montgomery Boice, Philippians: An Expositional Commentary, pp. 50-73; J. Ligon Duncan III, For the Greater Progress of the Gospel, First Presbyterian Church, Jackson, MS, 5-27-07; William Hendriksen, Philippians, Colossians and Philemon in the New Testament Commentary, pp. 67-74; R. Kent Hughes, Philippians in the Preaching the Word Commentary, pp. 47-58; Bill Hybels, The Cost of the Cause, WCCC-C8839.