Cain and Abel
Cain’s sacrifice to God was a result of Satan influencing him to offer the works of his hand rather than a proper peace offering like Abel offered. When God walked among them, He did not look at Cain’s offering, but did at Abel’s. This made Cain very angry.
God spoke with Cain about his attitude and reminded him that he was responsible for managing his sin nature. Whether or not, if you do good you will be lifted up, but if you do not do good the sin lies at the opening and its desire is unto you but you are to rule over it, Genesis 4:7
Cain’s reaction was to sacrifice his brother because his works were malignantly evil, where his brother’s were righteous. His works were malignantly evil because through his works Cain sought to influence others to follow him.
Not just as Cain who was out from the malignantly evil one and slew as a sacrifice his brother. And for what favor did he slay him? because his works were malignantly evil but his brother’s righteous, 1 John 3:12
Cain expressed the difficulty he was having with managing his sin nature to God after he was punished in Genesis 4:13, And Cain said to Jehovah, “My perversity is to great for me to bear.”
Cain was referring to his perversity, not the punishment God placed upon him. He was unable through his own strength to control his sin nature.
Examples of how עָוֹן is translated in other passages: Psalm 18:23; Job 7:21; 1 Samuel 3:13; Malachi 2.6. This word is found around 233 times in Scripture and is describing the perversity that comes from the sin nature.