So… Where Did Everyone Else Come From?

5 Nov

If Adam and Eve were the first people, where did everyone else come from?

Well, let me be completely upfront and say, I don’t know for sure. All I can do is look at what scripture says and make educated guesses about what it doesn’t say.

But this is one of those questions you can somehow miss for years. Adam and Eve have Cain and Abel. Cain kills Abel. Cain gets sent away. Then Cain gets married.

Hang on. Married to who?

Did Genesis miss a chapter called Meanwhile, In The Next Village?

It’s a fair question. And the answer is both simpler and more complicated than people sometimes make it.

The Simple Answer

The most straightforward answer is that Cain married a close relative. Genesis 5:4 tells us that Adam “had other sons and daughters.” Cain and Abel were not Adam and Eve’s only children. They were simply the children the story focuses on.

If Adam and Eve were the first human couple and every human being descended from them, then the earliest generations had no choice but to marry within the family. There was no neighbouring town, no other tribe over the hill, and definitely no Christian dating app.

There was just family.

And yes, that sounds deeply uncomfortable to us.

Was That Actually Sinful?

For most of us living in modern Western culture, this is probably the hardest part to get our heads around. Sexual relationships between close family members are illegal in many cases and widely regarded with deep disgust.

And they should not be normalised now.

The Bible later gives clear boundaries around sexual relationships within families. Leviticus 18 forbids a range of close-relative relationships. Once God had forbidden those relationships, deliberately entering one was sin.

So I am absolutely not arguing for some kind of love the one you’re with approach to sexual morality.

The question is different: had God forbidden it when the human race first began?

As far as Scripture tells us, no.

That distinction matters because God is not simply another human being living inside creation. He is its Creator. He has the right to establish how human life begins, how it continues, and the boundaries within which human relationships should operate.

God begins human life through creation. Adam comes from the dust. Eve is formed from Adam. Then God commands humanity to “be fruitful and increase in number.”

If Adam and Eve were the only humans, the first generations could only obey that command through relationships we would now consider far too close. Later, as humanity grows, God establishes clear limits around those relationships.

That is not necessarily God changing his mind about morality. It may simply be God governing human life appropriately at different stages.

Think about ordinary human development. A three-month-old feeding from its mother’s breast is completely normal, beautiful even. A baby soiling itself whenever it needs the toilet is also completely normal. Nobody looks at a baby in a nappy and thinks it has serious maturity issues.

But if a perfectly capable 35-year-old insisted on behaving in exactly the same way, we would rightly say something had gone badly wrong.

What is appropriate at one stage of life can become completely inappropriate at another.

In a similar way, God could begin humanity through direct creation, allow the earliest generations to reproduce through the only relationships available to them, and then, once humanity had grown, establish boundaries that were both possible and necessary.

The Creator has the right to do that. He can begin life through one means, propagate it through another, and then place limits around human relationships that protect life as the population and gene pool develop.

Abraham Makes This Even Clearer

We actually see something similar later in Genesis.

Abraham married Sarah, who was his half-sister. In Genesis 20:12 he says: “She really is my sister, the daughter of my father though not of my mother; and she became my wife.”

Under the laws God later gives Israel, that relationship would not be permitted. Yet Scripture never condemns Abraham for marrying Sarah on those grounds.

That should make us cautious about reading later commands backwards and assuming they operated in exactly the same way from the first day of creation.

On the traditional reading of Genesis, close-family marriage appears to have been permitted in humanity’s earliest generations and forbidden later.

That may still feel strange to us. It should.

We live thousands of years after those boundaries were established. What Cain may have done at the beginning of humanity is not permission for anyone to do the same thing now.

But What About Genetics?

There is also a practical problem.

Today, having children with a very close relative brings increased genetic risks because relatives are more likely to carry the same harmful genetic mutations. A child then has a greater chance of inheriting two copies of the same faulty gene.

So how could this have worked at the beginning?

This is where we need to distinguish between what Scripture says and what we can reasonably infer.

Genesis presents Adam and Eve as created for life before the fall. Death only enters the human story after sin. So it is reasonable to assume that their bodies were intended for life rather than decay.

The earliest generations are then described as living for extraordinary lengths of time. Adam lives 930 years. Seth lives 912. Methuselah makes it to 969, which is a lot of birthday cards.

If those ages are literal, it is reasonable to wonder whether the earliest humans were biologically healthier than we are today. Perhaps they carried far fewer harmful genetic mutations, making close-relative reproduction much less dangerous.

Over generations, as mutations accumulated and humanity became more genetically varied, those relationships would become both unnecessary and increasingly harmful.

That makes sense to me.

But it is still an inference.

The Bible never tells us Adam had perfect DNA or gives us a scientific explanation for Methuselah reaching 969. So by all means explore the idea. Just do not turn it into Scripture.

Hold Scripture Tightly, Hold Your Theories Lightly

This is where conversations about Genesis can go badly wrong.

There is nothing wrong with joining the dots. We all do it. The problem comes when we become as certain about our explanation as we are about the biblical text itself.

Maybe the earliest humans were genetically healthier. Maybe that helps explain their lifespans. Maybe there are factors we know nothing about.

Fine.

But our faith should never rise and fall on something extra-biblical.

If my favourite explanation for Cain’s wife gets disproved tomorrow, Christianity has not collapsed. Jesus is still risen. The gospel is still true. Scripture has not changed.

Be confident about what Scripture clearly says, thoughtful about what it seems to imply, and humble about everything else.

Hold Scripture tightly. Hold your theories lightly.

But Who Was Cain Afraid Of?

There is still another problem.

After killing Abel, Cain says: “Whoever finds me will kill me.”

Whoever?

Then Cain goes to the land of Nod, has a wife and eventually builds a city. Suddenly Genesis sounds rather populated.

Some people take this as evidence that other humans may have existed outside Adam and Eve’s immediate family. The traditional explanation is simpler: Genesis compresses time.

It never says Cain killed Abel a few weeks after they left Eden. Years or decades may have passed. Adam and Eve had other sons and daughters. Their children had children. Those children had children.

By the time Cain is exiled, there could have been a substantial extended family.

Genesis is not giving us a census. It is telling us the parts of the story that matter.

Could God Have Made Other Humans?

Of course He could, He is God! Some Christians think he did.

Genesis clearly presents Adam as the first man and Eve as “the mother of all the living.” The New Testament also treats Adam as the representative beginning of humanity. So the traditional belief that all humanity descends from Adam and Eve has strong biblical support.

What Scripture does not give us is a detailed scientific account of how every human population developed. It never explicitly says, “God created Adam and Eve and then directly created no other humans.”

That does not mean God definitely made others. I do not think we should claim that.

It simply means we should be careful not to claim more than Scripture does.

There are reasonable questions here, and faithful Christians have reached different conclusions.

Genesis Isn’t Ancestry.com

This is probably where we need to remember what Genesis is actually doing.

It is not a genetics textbook, a census or a modern scientific report. It does not tell us Cain’s wife’s name because Cain’s wife is not really the point.

Genesis is answering much bigger questions.

Who made us? God did.

What are human beings? We are made in his image.

Why is the world both beautiful and broken? Creation is good, but humanity rebelled.

Why do shame, violence, broken relationships and death exist? Sin has consequences.

Has God abandoned us?

No.

We can become so obsessed with where Cain found a wife that we miss what is happening around him. Humanity has barely left Eden before jealousy becomes murder. Adam and Eve hide. Cain lies. Violence spreads. Sin grows.