If Adam and Eve were the first humans, who did their sons have children with?

According to the story, humanity begins with one couple and two sons. No daughters are mentioned—yet somehow the human population continues. That leaves only a few logical possibilities, and none of them are comfortable: unmentioned siblings, close relatives, or later retcon explanations. From a modern perspective, that’s not just awkward—it directly implies incest as the foundation of humanity.

So is this story meant to be taken literally, symbolically, or selectively? And if logic, biology, and basic genetics clash with the narrative, should faith override reason—or should the story be understood as myth rather than history?

Let’s debate whether this is a misunderstanding, a metaphor gone wrong, or simply evidence that ancient origin stories weren’t built to survive modern scrutiny.