One couple from church sent me a photo of their excellent Cain and Abel statue they have in their home (here’s a photo).
Someone else from CBC sent me a text that asked “Dearest Frosty. If Adam and Eve had Cain and Abel. Cain killed his bruv (hoodlum). So why was Cain worried about others harming him? Are they not the first and only sons to be produced?”
This highlights a number of things in the beginning of Genesis that may indicate that Adam and Eve were not literally the first humans, in a personal sense. God told them that if they eat of the tree they would surely die, meaning that they must have had some concept of death – despite its apparent absence.
For me this is one of the things that encourages me to take care when reading these passages not to put more historical and scientific meaning into them than perhaps the writer, or God intended.