Genesis 4:1-3

Young's Literal Translation

4 And the man knew Eve his wife, and she conceiveth and beareth Cain, and saith, `I have gotten a man by Jehovah;'

² and she addeth to bear his brother, even Abel. And Abel is feeding a flock, and Cain hath been servant of the ground.

³ And it cometh to pass at the end of days that Cain bringeth from the fruit of the ground a present to Jehovah;