Genesis 4:2-6

And [later] she gave birth to his brother Abel. Now Abel kept the flocks [of sheep and goats], but Cain cultivated the ground. And in the course of time Cain brought to the LORD an offering of the fruit of the ground. But Abel brought [an offering of] the [finest] firstborn of his flock and the fat portions. And the LORD had respect (regard) for Abel and for his offering; [Heb 11:4] but for Cain and his offering He had no respect. So Cain became extremely angry (indignant), and he looked annoyed and hostile. And the LORD said to Cain, “Why are you so angry? And why do you look annoyed?