By way of Wikipedia…
In English, the phrase “fly in the ointment” is an idiomatic expression for a drawback, especially one that was not at first apparent, …
We had a cookstove, beans, and plates; the fly in the ointment was the lack of a can opener.
The likely source is a phrase in the King James Bible: …
“Dead flies cause the ointment of the apothecary to send forth a stinking savor.”
For five centuries, ‘a fly in the ointment’ has meant a small defect that spoils the content of a product or an endeavor.
In further examination, “it” unequivocally points out the (shortfall) in a proposition, a condition or an enterprise that was hidden and unexpected.
Question: What is hidden, and/or, (different) within Islamic doctrine that is illuminated within Christianity?
(The Laws of God and Morality).
Returning to Wikipedia…
Cousin marriage is marriage between people with a common grandparent or other more distant ancestor.
In various cultures and legal jurisdictions, such marriages range from being considered ideal and actively encouraged, to being uncommon but still legal, to being seen as incest and legally prohibited.
Such marriages are stigmatized today in the West. Albeit marriages between first and second cousins nevertheless account for over 10% of marriages worldwide.
They are common in the Middle East, where in some nations they account for (over half)* of all marriages.
Only particular kinds of cousin marriage have been allowed in many cultures, such as between cross cousins.
Various religions have ranged from prohibiting sixth cousins or closer from marrying to freely allowing or promoting first-cousin marriages.
*Cousin marriage is an important topic in anthropology and alliance theory.
The children of first-cousin marriages have an increased risk of genetic disorders, though some scientists contend this is relatively small. Supporters of cousin marriage in the West may view legal bans as discrimination, while opponents may appeal to morality or other arguments.
According to Webster: “mo·ral·i·ty,” n. The quality of being in accord with standards of right or good conduct.
According to Webster: “dis·crim·i·na·tion,” n. Consideration based on category rather than merit; partiality or prejudice.
Although cousin marriage was completely legal in all states before the Civil War. In the opinion of Kansas anthropology professor Martin Ottenheimer, the main purpose of marriage prohibition was maintaining the “social order” and upholding “morality” and “safeguarding” the creation of (fit) offspring.
According to Webster: “fit,” (in context) v. To be appropriate; suitable.
“Cousin marriage is allowed throughout the Middle East for all recorded history, and is practiced mostly in Syria.”
“Anthropologists have long debated the significance of the practice; some view it as the defining feature of the Middle East.”
Inbreeding is the production of offspring from the mating or breeding of individuals or organisms that are closely related genetically, in contrast to outcrossing, which refers to mating unrelated individuals.
By analogy, the term is used in human reproduction, but more commonly refers to the genetic disorders and other consequences that may arise from incestuous sexual relationships and consanguinity.
Inbreeding results in “homozygosity,” which can increase the chances of offspring being affected by recessive or deleterious traits.
This generally leads to a decreased biological fitness of a population, (called inbreeding depression), which is its ability to survive and reproduce.
With the inability to reproduce, at least to my way of thinking, (common sense), the Christians of the world should return to the security of Christian nations and send the Muslims home to inbreed their adversarial Islamic selves into extinction.
Question: Have you got a better idea?
An individual who inherits such deleterious traits is referred to as inbred. The avoidance of such deleterious recessive alleles caused by inbreeding is the main selective reason for outcrossing.
According to Webster: “re·ces·sive,” adj. Tending to go backward or recede.
According to Webster: “del·e·te·ri·ous,” adj. Having a harmful effect; injurious.
Question: What more do you need to know?
Truth forges understanding, I’ll be back tomorrow