“that by which they might cause a separation between a man and his wife”...
“that by which they might cause a separation between a man and his wife”: Some exegetes say that they caused love or hate between the couple with the help of their sorcery. Others think that they misled one of the spouses to disbelief and polytheism, and the apostasy caused the separation mentioned here. A third group say that they created hatred and enmity between the couple with their calumny and slander.
This, in short, gives a glimpse of the differences of opinions concerning the explanations of the words and clauses of the verse. There are still more differences about the event referred to - whether it narrates an actual happening or is just a parable; and so on and so forth. Compute the differences mentioned above and you will get nearly one million and two hundred sixty thousand possible explanations (4 x 3 9 x 2 4)!!
It seems an astounding quality of the Qur'an, that a verse that is subjected to so many divergent interpretations, still maintains its highest standard of eloquence; that in spite of all these vagaries of the exegetes, its meaning is not disjointed, nor its beauty marred. A similar treatment has been meted out to the verse: Is he then who has with him clear proof from his Lord, and a witness from him recites it and before it ( is ) the Book of Musa, a guide and a mercy (11:17).
However, it appears from the context that this verse deals with a hitherto unmentioned affair of the Jews, that is, their wide-spread use of sorcery. They based this practice on one or two stories, which were very popular among them. The Jews were addicted to making alterations and interpolations in, and omissions from, their Divine books, let alone the historical narrations. They used to change their books and records fitting them to the prevalent moods of their times.
A story narrated by them was not to be relied upon. But this Qur'anic admonition is based on their own belief, because it was they who used to narrate these stories. The verse proves that the practice of sorcery was prevalent among the Jews, and that they ascribed it to Sulayman (a.s.).
They presumed that Sulayman (a.s.) got the kingdom and subjugated the jinn, the human beings, the animals and the birds - all with the help of sorcery; and all the supernatural miraculous events related to him depended on witchcraft. And they claimed that some of the enchantments in their hands had come down to them from him.