How does the story of Cain and Abel illustrate the concept of original sin?

The narrative of Cain and Abel vividly illustrates the consequences of original sin, particularly the internal struggles that arise from it. Cain's anger towards God and Abel stems from a heart corrupted by sin. Instead of acknowledging his faults and seeking repentance, Cain succumbed to envy and ultimately committed the first murder out of rage. This behavior represents the manifestation of sin as it leads to division and violence, mirroring the ongoing conflict in humanity that began with Adam's disobedience. The story serves as a grave reminder of the human condition and the necessity for divine intervention through Christ to address the sin that dwells within each person.