Verse 8 is familiar to us; we use it quite often in our Sunday morning brief order for confession: "If we say we have no sin we deceive ourselves and the truth is not in us."
Christians should always seek to eradicate sin. Christians are to avoid sin. But followers of Jesus are also to be truthful to his word; and that word reminds us that sin will forever be with us.
There is but one solution to the sin that clings closely to us. We turn to God, who is gracious and merciful, slow to anger and abounding in steadfast love. And we ask God to forgive.
In our prayer of confession, we do not hide the sin present in our lives. In our prayer of confession we ask God to forgive us and to aid us in seeing the sin we have striven so hard to hide from others that it may also have become hidden from ourselves. God is always more ready to forgive than we are ready to confess, but how can we eradicate those sins which we refuse to acknowledge?
I John continues: "If we say we have not sinned, we make him a liar, and his word is not in us."
Sin will not destroy us or keep us from God. Blindness to our sin will impede our ability to have God's word rule our lives.