Why is understanding Christ's righteousness important for Christians?

For believers, comprehending the righteousness of Christ is essential as it undergirds their assurance of salvation. Romans 5:1 states that 'being justified by faith, we have peace with God through our Lord Jesus Christ.' This peace results from the righteousness of Christ, which is imputed to believers. By recognizing that Christ's righteous life was exchanged for their sins, Christians find security in their relationship with God. Moreover, as Psalm 85:13 assures, righteousness guides believers in the way of Christ's steps, leading them into a faithful walk that reflects His character.