Why is it important for Christians to understand their sinful nature?

Acknowledging our sinful nature is foundational in Reformed theology, as it enables Christians to comprehend the depths of their need for God's grace. The struggle between the old man and the new man, as described in the sermon, reveals the ongoing battle within believers. Recognizing that our enemy is often our own sin helps us understand why we need to rely not on our own understanding but on God's counsel. Psalm 13 underscores this need for God's enlightenment and intervention, reminding us that only through Christ can we escape the darkness of our sins and experience true life. This understanding cultivates humility and dependence on God's mercy.