Genesis 4:1-3

1Now the man 1had relations with his wife Eve, and she conceived and gave birth to Cain, and she said, “I have obtained a male child with the help of the Lord.”

2And again, she gave birth to his brother Abel. Now 2Abel was 3a keeper of flocks, but Cain was a cultivator of the ground.

3So it came about 4in the course of time that Cain brought an offering to the Lord from the fruit of the ground.