KJV: And Adam knew Eve his wife; and she conceived, and bare Cain, and said, I have gotten a man from the LORD.
NASB: Now the man had relations with his wife Eve, and she conceived and gave birth to Cain, and she said, "I have gotten a manchild with the help of the LORD."
KJV: And the LORD said unto him, Therefore whosoever slayeth Cain, vengeance shall be taken on him sevenfold. And the LORD set a mark upon Cain, lest any finding him should kill him.
NASB: So the LORD said to him, "Therefore whoever kills Cain, vengeance will be taken on him sevenfold." And the LORD appointed a sign for Cain, so that no one finding him would slay him.