'Offering' in the Bible

And in process of time it came to pass that Cain brought of the fruit of the ground an offering to Jehovah.

And Abel, he also brought of the firstlings of his flock, and of their fat. And Jehovah looked upon Abel, and on his offering;

and upon Cain, and on his offering, he did not look. And Cain was very angry, and his countenance fell.