… and why do I care?

I might be in the process of drafting a book that takes place before the Flood. So that is forcing me to tackle this issue. Besides needing to get it settled in my own mind, this post is meant to test the waters and see how you, my readers, react to this concept. If I even bring it up, will I be kicked out of polite society?

So, this post is a historical survey of sister-marrying. And it starts in Egypt.

Royals did it

Marrying one’s sister, or half-sister, was not unheard of in the royal families of Ancient Near Eastern cultures. See the following two links for some hair-raising proof that it happened in ancient Egypt:

https://fount.aucegypt.edu/cgi/viewcontent.cgi?article=6097&context=faculty_journal_articles

https://www.historyskills.com/classroom/ancient-history/egypt-brother-sister-marriage/

The practice of royal inbreeding continued so long in Egypt that, by the time we get to Tut-ankh-amen, he has a myriad of health problems and is rather strange-looking.

This was such an established part of married love, at least among royals, in the Ancient Near East that calling someone “my sister” became a conventional endearment. Here, for example, is Solomon:

You have stolen my heart, my sister, my bride,

you have stolen my heart with one glance of your eyes,

with one jewel of your necklace.

Song of Solomon 4:9

And why did they do it? The obvious answer is to keep the royal bloodline pure. Most ANE cultures tended to believe that their royal family was descended from the gods (see my post Genetic Engineering in the Ancient World), and to add another layer to this, their myths about the gods also often featured sibling-marriage. Typically, you’d have gods and goddesses all being descended from the same being (Father Sky and Mother Earth, say), and then reproducing with each other to produce all the typically observed features of the cosmos. (Please, for the love of God, take my word for this and don’t read the Sumerian creation myths. I’m begging you–don’t!)

Speaking of Sumerians, here is an article that argues that Abram married his half-sister Sarai (whose name means princess) for the same reason: because their family was some kind of royalty in Mesopotamia before he left on his journey.

https://biblicalanthropology.blogspot.com/2011/03/sister-wives-and-cousin-wives.html

My question, however, is this. Did this practice of royals marrying their sisters represent breaking an established taboo for a “good” reason, or was it a case of carrying on a common practice a little longer than most people? My contention is that it’s the latter.

Let’s Go to Genesis

Genesis is, as I have often said, my favorite ancient history book. The more I study all of this, the more I realize that it is by far the most accurate written record we have of really ancient history, and of course it’s the only written record we have for some events that are, nevertheless, corroborated indirectly by archaeology, genetics, and historical traditions from around the world.

So, in Genesis, we have humanity starting out with one single couple. If we take this seriously, we have to conclude that the first generation would have had to marry their brothers and sisters, because there was nobody else around.

Nowadays, this would be an impossible genetic problem, besides being taboo. However, clearly it wasn’t taboo at the time. By producing families, people were obeying God’s command to “be fruitful and multiply, fill the earth, and subdue it.” (Gen. 1:28) Based on the extremely long lifespans recorded in Genesis, we can infer that the newly created people were much healthier than we are, with a much more varied and robust genetic code. They would have had few diseases as yet, and almost no harmful mutations to inherit. Adam and Eve, who didn’t die until they were into their 900s, could have had literally a hundred or more children in that first generation. Furthermore, these children need not all have looked alike, except in the sense of being human. We have to remember that Adam and Eve had within them the potential to produce every genetic variation we see today (and actually more, since most of the variety was lost during the Flood).

By the time Cain kills Abel, there are enough people in the earth that Cain can complain, “I will be a restless wanderer on the earth, and whoever finds me will kill me.” These other people that he is worried about would have been his siblings, nephews and nieces, grandnephews and -nieces, and so forth. If we figure that Seth was born not long after the murder of Abel, then the murder of Abel took place just under 130 years after the Fall. (Genesis 4:25 – 5:3) Apparently, that was enough time for the world to be populated.

In this video, starting at about 20:00, geneticist Nathaniel T. Jeansen discusses how our ancestors had to have been more closely related “than we are usually comfortable with.”

A Detour into Evolutionary Theory

“But wait!” you may say. “All this is nonsense. People didn’t all come from one founding couple, we evolved from several different but related species of hominids.”

Actually, if you think that way, you probably stopped reading this article before you got to this section. But let’s dip a toe into natural selection, just in case there is anyone hate-reading or any readers who are intrigued by what I’m saying about history, but are bothered by the science side of things.

Natural selection, in order to work as a mechanism, has to have a population of creatures already in place, with some genetic variation already in their genome. And–this is critical–they have to be already reproducing. That way, natural selection can operate on the subsequent generations of the population, encouraging variety here, stamping it out there, etc.

This creates a big problem if you want to argue that people evolved from (ultimately) one-celled animals. Now, how one-celled animals reproduce is itself a beautiful, complex mystery, but it’s basically by subdividing, producing clones of themselves. In other words, it’s not sexual reproduction.

How did sexual reproduction come about through natural selection? It would call for a wildly improbable series of (already vanishingly rare) beneficial mutations to the genetic code of two different creatures of the same species, such that one ended up male and one ended up female, with their systems perfectly corresponding to each other for reproduction. And it would have to work perfectly the first time.

If you want several different populations of human species, then you need this miracle to happen not once but several times, in different places. If it only happens once, then you’re back to what Genesis describes, which is just one founding couple.

What I’m saying is that introducing evolutionary theory doesn’t make the believability problem smaller, it makes it bigger.

Stephen Meyer explains why beneficial mutations are mathematically impossible.

Back to Genesis Again

We’ve established that in the pre-Flood world, there was no taboo on marrying one’s sibling (or probably, cousin or niece either), and also no health cost to doing so. Also (probably) it would not necessarily mean marrying someone you had grown up in close proximity with, given the size of the families we are talking about.

Then we get the Flood, in Genesis 6 – 9 and also attested in numerous local histories worldwide. At the Flood, the human population of the earth, previously vast in genetic diversity, gets culled down to just four couples, and the men of these couples are all related to each other. It’s from these four couples (perhaps just three of them?) that all of us today are descended. (We are literally just one big family!)

Think about the implications of this. The most distant relationship that any of Noah’s grandchildren would have had to each other would have been cousin during that first generation. Perhaps they married their cousins, and then their second cousins and so forth, but there is nothing to indicate that the possibility of marrying siblings had been closed to them. In Gen. 9:1 -17, God makes a new covenant with Noah and his sons. He reiterates the command to increase in number and fill the earth. He gives them the animals to eat, institutes the death penalty for murder of humans, and promises never to send another worldwide flood. He does not mention any new rules about not marrying your sister.

Next, in Genesis 11 and 10 respectively, we get the Tower of Babel and the Table of Nations. Though the Table of Nations comes before the account of Babel, the fact that we are told which geographical areas these nations settled in hints that the Table of Nations is at least a partial elaboration of where people went when “the LORD scattered them over the face of the earth.”

In the Table of Nations, the peoples are sorted by father. We see the descendants of Shem, Ham, and Japeth listed by a paternal line, and we see them scattering to found cities, kingdoms, and peoples. This implies, though it does not directly say, that they were having a lot of children per family, and that they were practicing in-group marriage.

Now we get to Abram, who was a Sumerian basically, or was living in that region of the world and in that culture area. As has been covered, he married his half-sister Sarai, whether because theirs was an aristocratic family or because it was still common practice in Mesopotamia at the time. Later, on two separate occasions (Gen. 12:10 – 20 and 20:1 – 18), he “lies” by telling a local ruler that Sarai is his sister. On both occasions, the local king understands this to mean that Sarai is not Abram’s wife and is fair game for his harem. This shows that, probably, most wives were not sisters at the time, at least in Egypt (Gen. 12) and southern Palestine (Gen. 20).

This would be about 2,000 B.C.

In Genesis 24, Abraham asks his servant to get a wife for Isaac from among “my own relatives.” The servant, guided by the LORD (!), finds Rebekah, the daughter of Abraham’s niece (Gen. 24:15). One generation later, Rebekah herself encourages Jacob to marry one of his cousins, daughters of her brother Laban. So by this time, we are practicing in-group marriage, but with cousins, not siblings.

Some groups still do this. See my post on The Iroquois Kinship System.

Finally, A Taboo in Leviticus 18!

Finally, in Leviticus 18, we get an explicit prohibition on marrying your sister.

Leviticus comprises the details of the giving of the Law, right after the exodus from Egypt, so about 1400 B.C. If you plop your finger onto Leviticus, it looks really early in the Bible. However, it’s 600 years after Abraham and a couple of thousand years after the Flood, so it is coming rather late from this blog’s perspective on ancient history.

The intended recipients of Leviticus are a large population of tribes who have just spent 400 years becoming culturally Egyptian. Since Moses’ parents were both from the tribe of Levi (Exodus 2:1), we can infer that they are still practicing in-group marriage.

Leviticus chapter 18 begins this way:

The LORD said to Moses: “Speak to the Israelites and say to them: ‘I am the LORD your God. You must not do as they do in Egypt, where you used to live, and you must not do as they do in the land of Canaan, where I am bringing you. Do not follow their practices. You must obey my laws and be careful to follow my decrees. I am the LORD your God. Keep my decrees and laws, for the man who obeys them will live [i.e. find life] by them. I am the LORD.

“No one is to approach any close relative to have sexual relations. I am the LORD.”

Lev. 18:1 – 6

There follows a very comprehensive list of close relatives who are off-limits. This list includes everything you can think of, and some things that you perhaps haven’t. It ranges from very sick perversions, to this:

“‘Do not have sexual relations with your sister, either your father’s daughter or your mother’s daughter, whether she was born in the same home or elsewhere. (v. 9)

“‘Do not take your wife’s sister as a rival wife and have sexual relations with her while your wife is living.'” (v. 17)

Verse 9 gives us a clue of what types of family arrangements were possible among the Israelites of 1400 B.C. You might have a half-sister who was raised in a separate household. Verse 17 describes a behavior that Jacob famously engaged in with Rachael and Leah (additionally, both women were his cousins). In fact, the two women’s rivalry was how we got the twelve tribes of Israel. Marrying two sisters at the same time (not to mention their respective maidservants) was apparently something that was normal in the age of the patriarchs, but now, giving the Law 600 years later, God forbids it.

Leviticus 18:24 – 29 makes it clear that “all these things were done by the people who lived in the land before you,” but God considers them to be things that defile a land. I gather that this means the wide variety of disordered sexual relationships described in Leviticus 18 were not unheard-of, probably not just among the Egyptians and Canaanites, but among many or all of the many tribes in the surrounding areas.

We have God to thank for this taboo

So, now we know approximately when marrying your sister became taboo. 1400 B.C. And people didn’t come up with this on their own; God had to enforce it.

The overall picture is one where we start off with is marriages taking place among close family, in sort of a wholesome way, before and immediately after the Flood. Then, instead of branching out and marrying more and more distantly related people as the earth’s population increases, we see cultures in the Ancient Near East curving back in on themselves and coming up with more and more perverse ways to approach this. I gather from Lev. 18 that, once an ANE man had bagged a wife, he seemed to feel entitled, or at least have an eye out for the opportunity, for sexual rights to everyone related to her.

The time of the Israelite patriarchs, enslavement in Egypt, and Exodus also overlaps with the Minoan civilization on Crete, which gave us the legend (?) of the Minotaur, the offspring (allegedly) of Queen Pasiphae and a white bull. That gives us a clue that such horrifying practices were not confined to the Levant. “Do not defile yourselves in any of these ways, because this is how that nations that I am going to drive out before you became defiled.”