Not going to lie, this chapter was kind of boring. It begins the long...so and so lived so many years and had so and so for a son and then died. The interesting part of this chapter is the Cain and Abel part. I never realized how vague the Bible actually was on what happened. Seems like all those preachers I've heard talking on the subject have elaborated and added their own words to it.
First off, it never says what was wrong with Cain's offering. He worked the ground, he was a farmer. He brought God an offering of fruit. Abel was a shepherd. He brought God a dead lamb. So what, God doesn't like fruit? He only likes blood? Never went into detail. Just said that God looked on Cain's offering in displeasure. Cain gets understandably upset with this. I would too. Not condoning the part where he kills his brother, but I understand why his feelings were hurt. And am I the only one who ever wonders exactly how Cain killed Abel? Does that make me weird that I think about that kind of stuff? The Bible just says that they go out into a field and Cain attacks and kills him. Then God punishes and drives Cain away, blah blah, and we get a family genealogy. I also didn't realize that Methuselah, the oldest guy ever, came from Cain's bloodline. Just never connected the two. I wonder what it would be like to live almost 1000 years.
Conclusion: The Bible likes to be really vague when it comes to what should be it's historical parts. Reminds me of Beowulf or the Iliad. Also, I feel kind of sorry for Cain.