Genesis 4:3-5 In the course of time Cain brought some of the fruits of the
soil as an offering to the Lord. And Abel also brought an offering—fat
portions from some of the firstborn of his flock. The Lord looked with
favor on Abel and his offering, but on Cain and his offering he did not
look with favor. So Cain was very angry, and his face was downcast.
Genesis 4:5b So Cain was very angry, and his face was downcast.
Genesis 4:8 Now Cain said to his brother Abel, “Let’s go out to the field.
While they were in the field, Cain attacked his brother Abel and killed him.