What's the deal with that song?
You know, the Johnny Cash song that book-ends the film. There's some spoken dialog, like "God said to Abraham, 'Kill me a son'", or something along those lines.
What is the significance of that song, and how does it relate to the story? My guess is it has to do with how TLJ's character has to kill BDT, and it's kind of similar to how Abraham in the Bible was supposed to kill little Isaac. Or am I reading too much into a simple film?