1 John 1:7-9 But if we are living in the light, as God is in the light, then we have fellowship with each other, and the blood of Jesus, his Son, cleanses us from all sin. If we claim we have no sin, we are only fooling ourselves and not living in the truth. But if we confess our sins to him, he is faithful and just to forgive us our sins and to cleanse us from all wickedness.
Galatians 5:19-21 When you follow the desires of your sinful nature, the results are very clear: sexual immorality, impurity, lustful pleasures, idolatry, sorcery, hostility, quarreling, jealousy, outbursts of anger, selfish ambition, dissension, division, envy, drunkenness, wild parties, and other sins like these. Let me tell you again, as I have before, that anyone living that sort of life will not inherit the Kingdom of God.
Psalm 32:1-5 How happy is the one whose rebellious acts are forgiven, whose sin is pardoned! How happy is the one whose wrongdoing the Lord does not punish, in whose spirit there is no deceit. When I refused to confess my sin, my whole body wasted away, while I groaned in pain all day long. For day and night you tormented me; you tried to destroy me in the intense heat of summer. Then I confessed my sin; I no longer covered up my wrongdoing. I said, “I will confess my rebellious acts to the Lord.” And then you forgave my sins.
Psalm 51:1-4 Have mercy on me, O God, because of your loyal love! Because of your great compassion, wipe away my rebellious acts! Scrub away my wrongdoing! Cleanse me of my sin! For I am aware of my rebellious acts; I am forever conscious of my sin. Against you, especially you, I have sinned; I have done what is sinful in your sight. So you are just when you confront me; you are right when you condemn me.
Sin is like germs which are all around us. We need to be washed away from them, constantly, again and again. Germs travel from one place to another and are invisible. Washing hands with soap will eliminate the germs, but as soon as something else containing germs comes close, we get contaminated with them again. It’s a cycle. With sin, we can be cleansed by praying and asking God for forgiveness, but we live in a sinful world, we are sinful by nature, so we need to constantly be on the look out for exposure and contamination of sin.
Great video about germs planning attacks against humans. A few questions related to sin could be: what steps can we take to protect ourselves from sin that is waiting for us? What happens when we sin? What are our weapons against sin?
Video which shows how germs travel:
Watch from 1:00-4:25