Who did Cain and able marry?

Answer 1

Adam "became father to sons and daughters." (Genesis 5:4) So Cain took one of his sisters or perhaps one of his nieces as a wife. Later, God's Law to the Israelites did not permit the marriage of a fleshly brother and sister.-Leviticus 18:9.

Answer 2

According to The Bible, Cain and Abel married their sisters. Genesis does not provide their names. This has led to various interpretations and debates about the identities of these women.