Q: Where did Cain get his wife and who would kill him? Two options: (1) Adam and Eve's other children/grandchildren — could be hundreds of people by then, genetic issues not yet a problem. (2) Some scholars suggest other humans outside the garden, with Adam and Eve as representative/priestly figures. Mike leans toward option 1.

The text doesn't specify when Cain married — he may have already had a wife before the murder. Significant time may have passed between Gen 4:1 and the murder — dozens to hundreds of descendants possible. Genetic deformity from intermarriage wouldn't have been an issue early on. Alternative view: other humans existed outside the garden, Adam and Eve as representatives. Mike notes both views without firmly committing.