The document discusses reasons to be thankful based on Colossians 1:12-14. It provides three main reasons for thankfulness: 1) it honors God, 2) it is commanded, and 3) thanklessness can have negative consequences. It then examines the passage in more detail, noting that believers have been qualified through Christ for an inheritance with the saints, delivered from darkness and Satan's power, and transferred to God's kingdom through redemption and forgiveness of sins.