Who did Cain marry? Were there more people on earth at the time that the bible doesn’t mention?
Genesis 5:4 tells that Adam & Eve had sons and daughters. Cain married a sister. The murder of Abel took place when Cain was about 125 years old. Some estimate the population could have been 100,000 by that time. Genesis 4:14 tell us that Cain was worried that ‘everyone that findeth me’ shall slay me.