It is often believed that Cain and Abel were Adam and Eve’s firstborn children. However, we aren’t ever told that in scripture. Just like other accounts in the Bible, their lives serve as illustrations of what we should and should not do. Cain’s life was a cautionary tale, while Abel’s was exemplary. But there is more we can deduce from God’s word about these rival brothers.

If we believe that Adam and Eve were the first people, then Cain could not have married someone who didn’t come from Adam and Eve. While we don’t know how old Adam was when Cain and Abel were born, we do know that he was 130 years old when Seth was born.

According to population charts, if Adam and Eve began having children right after hearing the command to “multiply and fill the earth,” and they had 1 child every other year, then by the time Adam was 130, he and Eve could have had 65 children. They could have had more. If we assume that the two oldest children married and began having children at around age 20, they could have had 56 grandchildren by the time Adam was 130. And the next two children could have had 55, the next two 54, and so on. So, by the time Adam was 130, he could have had 1,536 grandchildren.

If we look at the great-grandchildren, then the first two could have had 44, the next two, 43, and so on. So by the time Adam was 130, there would be a population of 10,000 people—all from two people. And this is probably a low estimate.

Because there were a lot of people in that area, they would have moved on to other places so that there would be enough resources for everyone.  

When Cain left to find a wife, he would have been going off to get a wife from his family, as the whole world population came from Adam and Eve.

I hope this helps.

Print This Post Print This Post

About the Seeking Scripture Team: We are a group of believers from all walks of the faith, saved by grace alone through faith in our Messiah. While we are of one accord in many things, we are all works in progress and lifelong learners. Therefore the opinions of one may not always represent the opinions of all.

Aliisa DeSalvo