Genesis 4:1-3

ASV(i) 1 And the man knew Eve his wife; and she conceived, and bare Cain, and said, I have gotten a man with [the help of] Jehovah. 2 And again she bare his brother Abel. And Abel was a keeper of sheep, but Cain was a tiller of the ground. 3 And in process of time it came to pass, that Cain brought of the fruit of the ground an offering unto Jehovah.