Genesis 4:1

And Adam knew Eve his wife; and she conceived, and bare Cain, and said, I have gotten a man from the LORD.

Cross References

Genesis 3:15 And I will put enmity between thee and the woman, and between thy seed and her seed; it shall bruise thy head, and thou shalt bruise his heel.
Genesis 4:25 And Adam knew his wife again; and she bare a son, and called his name Seth: For God, said she, hath appointed me another seed instead of Abel, whom Cain slew.
Genesis 5:29 And he called his name Noah, saying, This same shall comfort us concerning our work and toil of our hands, because of the ground which the LORD hath cursed.
Numbers 31:17 Now therefore kill every male among the little ones, and kill every woman that hath known man by lying with him.
1 John 3:12 Not as Cain, who was of that wicked one, and slew his brother. And wherefore slew he him? Because his own works were evil, and his brother's righteous.