Now Adam knew Eve his wife, and she conceived and bore Cain, saying, "I have gotten a man with the help of the LORD."
References for Genesis 4:1
And again, she bore his brother Abel. Now Abel was a keeper of sheep, and Cain a worker of the ground.
In the course of time Cain brought to the LORD an offering of 1the fruit of the ground,
References for Genesis 4:3
and Abel also brought of 2the firstborn of his flock and of their fat portions. And the LORD 3 had regard for Abel and his offering,
References for Genesis 4:4
but 4for Cain and his offering he had no regard. So Cain was very angry, and his face fell.
References for Genesis 4:5
The LORD said to Cain, "Why are you angry, and why has your face fallen?