BTTT
Cain and Abel foreshadow all religious conflict. Cain killed Abel. The Papacy, like the Pharisees before them (who killed the prophets), Matt. 23, killed those who chose the scriptures over the Pope. The Papacy persecuted and killed thousands upon thousands.
The Pharisees were the Cain of the OT, the Papacy the Cain of Church history. It doesn’t take a masters degree to figure out who best represents Cain.