The Bible gives limited details on the name and character of Cain’s wife. The only mention of Cain’s wife is in Genesis 4:17, where Cain and his wife had a son. They soon named a city after their son. The Bible does say that Adam and Eve had other children besides Cain and Abel (Genesis 5:4). No doubt it was one of these daughters that Cain took for a wife.
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God commanded humanity to be fruitful and multiply (Genesis 1:28; 9:1) and this was necessary to marry one’s own relative. Abraham, Isaac and Jacob married their own relatives so as to avoid intermarrying non-believers. Later, however, Moses commanded close intermarriages between members of the same family to be prohibited (see Leviticus 18:6-17).
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