In addition to the New International Version of the Bible (Biblica, 2011), the following resources were used to help write this sermon: William Hendricksen, Philippians, Colossians and Philemon in the New Testament Commentary, pp. 163-64; J.L. Houlden, Paul’s Letters from Prison: Philippians, Colossians, Philemon, and Ephesians, pp. 207-08; R. Kent Hughes, Colossians and Philemon in the Preaching the Word Commentary, pp. 109-13; Ralph P. Martin, Ephesians, Colossians, and Philemon in the Interpretation Commentary, pp. 124-26; John Ortberg, The Great Gratitude Experiment, Preaching Today, 2012.