The very name of the book of Genesis implies that it is the beginning of something. It is the genesis of the biblical story. But it is much more than just a beginning, specifically the early chapters of the book. They are not just the start of a story. They serve as a foundation for everything that follows.
I have been reading a lot about Cain and Abel recently. I have been reading about them because that is the topic of my master’s thesis. As a grad student there is nothing that we like to talk about more than our master’s thesis and there is nothing that everyone hates more than hearing a grad student talk about their master’s thesis. So I will save all the boring details for another time.