Genesis 4:8

"And Cain told 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."

This is another disputed text, and the older version to the effect that "Cain talked with his brother," would appear to be preferred. "Under the guise of brotherly familiarity, he concealed his premeditated purpose until a convenient time and place for the murder."[17] The tragedy of this event is emphasized by the seven-fold repetition of the word "brother" in the passage.