Thematic Bible: Cain and abel

And Abel, he also brought of the firstlings of his flock and of the fat thereof. And the LORD had respect unto Abel and to his offering: But unto Cain and to his offering he had not respect. And Cain was very angry, and his countenance fell. And the LORD said unto Cain, Why are you angry? and why is your countenance fallen? read more.
If you do well, shall you not be accepted? and if you do not well, sin lies at the door. And you shall be its desire, and you must rule over it.