1. Put off the old self (17-19)

God is the source of truth and life. Once, when we lived without God's truth in our hearts we could not think clearly, so our thinking was futile. As Christians, we must no longer think like godless people. When we allow our thought-world to be captured by sensuality and impurity, our hearts become hard, our understanding dark, and we are separated from the life of God. When we harden our hearts toward God we become ignorant and insensitive, and we are deceived by our sinful desires. Sinful desires grow when we give in to them. These things belong to the old self which we must put off.

2. Put on the new self (20-24)

When we know Christ, God's truth is planted in our hearts. Christ rules our thought-world, and gives us a new attitude toward others, ourselves and the world. We must put off the old self with its corrupt and deceitful desires, and put on the new self, created to be like God in true righteousness and holiness.

Application: Lord, help me to put off my old self. Put your truth in my heart, so that I may put on the new self.
One Word: Put on the new self