Envy
Gurnall, William 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… Beware of envy; it was one of the first windows that corrupt nature looked out at; a sin that shed the first blood. Cain's envy hatched Abel's murder. ( W. Gurnall..) Parallel Verses KJV: 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. WEB: Cain said to Abel, his brother, "Let's go into the field." It happened when they were in the field, that Cain rose up against Abel, his brother, and killed him.