Who was Cain’s wife? After Adam and Eve were driven out of the Garden of Eden, they had their first child — a son, named Cain. Later, Cain married. Where did he get his wife?
I have heard that question discussed many times and I am asked about it frequently. Well, there are different opinions, the most sensible one being that Adam and Eve had other children and Cain married a sister.
But, really the whole question is nothing on which to spend much time. In 1 Timothy 1, Paul taught us not to spend time on vain discussion which really promotes controversy rather than God’s work.
Some things are interesting to discuss, but useless in providing help in living the Christian life. Friend, spend your Bible study time on those things which help you live better.