It combines the force of argument with beauty of meaning...
It combines the force of argument with beauty of meaning, the fineness of proof with clarity of result. Before this verse was revealed, the Arabs were fond of some adages and maxims (on the subject of murder and retaliation), of whose rhetoric and fluency they were very proud. For example: 'To kill some is to keep alive all', and 'To increase killing is to decrease killing'.
And the most remarkable in their eyes was the sentence: 'Killing stamps out killing.' But when this verse was revealed all were forgotten. Some of its distinguishing points are as follows: The verse has fewer letters, and is easy to pronounce. " the retaliation" with definite article is a proper noun, while "life " is common noun - it shows that the resulting good is greater and more widespread than the retaliation.
It explains the result in clear words and describes the real philosophy of the law, that is, the life. It unambiguously shows by what means the desired result can be obtained: Obviously, it is the retaliation that leads to life, and not the killing. (After all, many killings are done unjustly, and they do not lead to life, they are negation of life.) The word, "retaliation," covers also other punishments besides killing, that is, the reprisal in the matter of injury, etc.
(Compare it with their maxim, "Killing stamps out killing", which does not give any idea that "killing" refers to any punishment.) Then there is an exhortation in this sentence, as it points to a life reserved for the people, whom they are oblivious of; it behooves them to take hold of it as it really belongs to them; it is as if someone tells you: There is a property belonging to you with so-and-so, or in such and such a place.
Lastly, the opening word of the verse, that is, "for you" makes it clear to the men of understanding that the law-giver only desires to protect their interest, and no benefit is ever to accrue to him. These are a few of the fine points found in this verse. The scholars have mentioned some more points, which may be seen in the books of rhetoric. The fact is, the more deeply you look at this verse, the more dazzled you shall be by its brilliance and radiance; and the word of Allah is the highest.