1. The blood of Jesus purifies us (5-7)

Sin breaks our fellowship with God and with others. It makes us fatalistic and dark, and robs our lives of meaning. But we don't have to live in the darkness of sin. God is light, and in him there is no darkness. If we repent before him, he exposes our sin, and the blood of Jesus his Son purifies us from all sin. We can walk joyfully with God in his light.

2. Confess your sin (8-10)

If we cover up our sins because of pride or self-righteousness, no one can help us. But if we confess our sins and put them under the blood of Jesus, God is faithful to forgive us and cleanse us from all unrighteousness. Everyone is a sinner, so there is no need to pretend not to be one! There is every reason to confess our sins and be forgiven, for this is the way of healing and peace. This is the only solution to sin and guilt.

Application: Lord, I am a sinner. By your grace alone wash me in the blood of Jesus and make me clean.
One Word: He purifies me from all unrighteousness