Genesis 4:4-6

Amplified Bible, Classic Edition

⁴And Abel brought of the firstborn of his flock and of the fat portions. And the Lord had respect and regard for Abel and for his offering,^(A)

⁵But for ^[a]Cain and his offering He had no respect or regard. So Cain was exceedingly angry and indignant, and he looked sad and depressed.

⁶And the Lord said to Cain, Why are you angry? And why do you look sad and depressed and dejected?

Genesis 4:5 In bringing the offering he did, Cain denied that he was a sinful creature under the sentence of divine condemnation. He insisted on approaching God on the ground of personal worthiness. Instead of accepting God’s way, he offered to God the fruits of the ground which God had cursed. He presented the product of his own toil, the work of his own hands, and God refused to receive it (Arthur W. Pink, Gleanings in Genesis).