What does the Bible say about grief over sin?

The Bible speaks to the essential nature of grief over sin in both the Old and New Testaments. This grief is not merely an emotional response but a deeply rooted reaction that characterizes the new nature of believers. Such sorrow arises from recognizing one's own corruptions and a longing for holiness, akin to the grief expressed by David when he said, 'I beheld the transgressors and was grieved.' Believers are called to feel a holy indignation, not out of self-righteousness, but from a heart that loves God's holiness and is distressed by the sinfulness around them (Ezekiel 20:43). This grief should lead to prayer and a compassionate heart towards the lost, rather than a spirit of contention or judgment.