How do we know we are light in the Lord?

The assurance of being light in the Lord comes from the ability to see our sinfulness and recognize the grace of God in Christ. Ephesians 5:8 states that believers were once darkness but are now light. This transformation implies a spiritual awakening where one can discern their condition before God and understand Christ as the source of acceptance and justification. As John Newton famously expressed, 'I once was blind, but now I see.' This newfound ability to perceive truths of Scripture and the reality of one’s spiritual condition is a hallmark of being in Christ, indicating the work of the Holy Spirit in the believer’s life.