God is “light” - perfectly holy, true, good and just. Yet, He desires to have fellowship with each of us. However, we’re not perfect; we all have darkness (sin) in our lives. If we claim to have a relationship with God while continuing to live in sin, we’re deceiving ourselves. The only way to be cleansed of our sin is to place our faith in Jesus Christ. When we follow Jesus, His sacrificial death cleanses us and enables us to have relationship with God. Because we still occasionally sin, we need to regularly confess our sins to God, or our relationship with Him will be inhibited.