Why is David's expression of guilt significant for Christians?

David's acknowledgment of his sin after counting the people is a crucial moment in the narrative, reflecting a heart that is willing to repent and seek forgiveness. His declaration, 'I have sinned greatly,' serves as an example for Christians today, illustrating that true repentance involves not only recognition of wrongdoing but also the desire for restoration through God's mercy. This incident reminds believers of their own inherent sinfulness and the continual need for grace, highlighting God's readiness to forgive when we turn to Him in humility.