Why is understanding biblical repentance important for Christians?

In the sermon, the distinction between genuine repentance and false repentance is highlighted, particularly in Pharaoh's response to judgment. True repentance is marked by a change of heart and life, leading to a continued relationship with God, whereas false repentance is superficial and often occurs in times of trouble but does not lead to lasting change. 2 Peter 2:22 warns that returning to sin after a moment of repentance is like 'the dog returning to his vomit', emphasizing that true godly sorrow results in life and change.