Genesis 4:8 And Cain talked with Abel his brother: and it came to pass, when they were in the field, that Cain rose up against Abel his brother, and slew him. 9 And the Lord said unto Cain, Where is Abel thy brother? And he said, I know not: Am I my brother's keeper?
[Patriarchs & Prophets pp 77] When Cain, moved by the spirit of the wicked one, saw that he could not control Abel, he was so enraged that he destroyed his life. And wherever there are any who will stand in vindication of the righteousness of the law of God, the same spirit will be manifested against them. It is the spirit that through all the ages has set up the stake and kindled the burning pile for the disciples of Christ. But the cruelties heaped upon the follower of Jesus are instigated by Satan and his hosts because they cannot force him to submit to their control.
It is the rage of a vanquished foe. Every martyr of Jesus has died a conqueror. Says the prophet, “They overcame him [“that old serpent, called the devil, and Satan”] by the blood of the Lamb, and by the word of their testimony; and they loved not their lives unto the death.” Revelation 12:11, 9. Cain the murderer was soon called to answer for his crime. “The Lord said unto Cain, Where is Abel thy brother? And he said, I know not: Am I my brother's keeper?” Cain had gone so far in sin that he had lost a sense of the continual presence of God and of His greatness and omniscience. So he resorted to falsehood to conceal his guilt.
Again the Lord said to Cain, “What hast thou done? The voice of thy brother's blood crieth unto Me from the ground.” God had given Cain an opportunity to confess his sin. He had had time to reflect. He knew the enormity of the deed he had done, and of the falsehood he had uttered to conceal it; but he was rebellious still, and sentence was no longer deferred. The divine voice that had been heard in entreaty and admonition pronounced the terrible words.
Genesis 4:11 “And now art thou cursed from the earth, which hath opened her mouth to receive thy brother's blood from thy hand. 12 When thou tillest the ground, it shall not henceforth yield unto thee her strength; a fugitive and a vagabond shalt thou be in the earth.”
May God add His blessing to the study of His word. “Good night” and God bless!