Now Adam knew Eve his wife, and she conceived and bore Cain, saying, "I have gotten a man with the help of the LORD." And again, she bore his brother Abel. Now Abel was a keeper of sheep, and Cain a worker of the ground. In the course of time Cain brought to the LORD an offering of the fruit of the ground, read more.
and Abel also brought of the firstborn of his flock and of their fat portions. And the LORD had regard for Abel and his offering, but for Cain and his offering he had no regard. So Cain was very angry, and his face fell. The LORD said to Cain, "Why are you angry, and why has your face fallen? If you do well, will you not be accepted? And if you do not do well, sin is crouching at the door. Its desire is for you, but you must rule over it."

"A son honors his father, and a servant his master. If then I am a father, where is my honor? And if I am a master, where is my fear? says the LORD of hosts to you, O priests, who despise my name. But you say, 'How have we despised your name?' By offering polluted food upon my altar. But you say, 'How have we polluted you?' By saying that the LORD's table may be despised. When you offer blind animals in sacrifice, is that not evil? And when you offer those that are lame or sick, is that not evil? Present that to your governor; will he accept you or show you favor? says the LORD of hosts. read more.
And now entreat the favor of God, that he may be gracious to us. With such a gift from your hand, will he show favor to any of you? says the LORD of hosts. Oh that there were one among you who would shut the doors, that you might not kindle fire on my altar in vain! I have no pleasure in you, says the LORD of hosts, and I will not accept an offering from your hand.

By offering polluted food upon my altar. But you say, 'How have we polluted you?' By saying that the LORD's table may be despised. When you offer blind animals in sacrifice, is that not evil? And when you offer those that are lame or sick, is that not evil? Present that to your governor; will he accept you or show you favor? says the LORD of hosts. And now entreat the favor of God, that he may be gracious to us. With such a gift from your hand, will he show favor to any of you? says the LORD of hosts.