as “discrepancy” in the words of Allah Most High:

“Had it been from anyone other than Allah, they would have found in it much discrepancy.” (82) [al-Nisā’ 82]

This applies to commands, prohibitions, and statements: it commands what is good and whatever is comparable to it, and prohibits what is evil and whatever is comparable to it. It does not contradict itself by passing different judgments on two comparable things. The same applies to praise and blame: it praises a thing and whatever is comparable to it, and condemns a thing and whatever is comparable to it. Likewise with encouragement and warning, promises and threats. The speech of created beings, by contrast, is never entirely free of contradiction and inconsistency.

Resemblance in wording consists in its proportion, harmony, and balance, qualities that characterize the Quran throughout. This is unlike the speech of created beings: one part may attain a certain standard of beauty while the rest falls short, so that its end is not like its beginning. This resembles construction or sewing: when the work is well proportioned, its parts resemble one another, unlike work whose parts do not fit together.

As for mathānī (“repeated”), it is the plural of muthannā (“doubled”); doubling here denotes division into categories.