Genesis 4:3-5 NIV

3 In the course of time Cain brought some of the fruits of the soil as an offering1 to the LORD.2

References for Genesis 4:3

4 But Abel brought fat portions3 from some of the firstborn of his flock.4 The LORD looked with favor on Abel and his offering,5

References for Genesis 4:4

5 but on Cain and his offering he did not look with favor. So Cain was very angry, and his face was downcast.