After having pointed out that true piety does not consist in mere adherence to outward forms and rites, the Qur'an opens, as it were, a new chapter relating to the problem of man's behaviour. Just as piety cannot become effective without righteous action, individual righteousness cannot become really effective in the social sense unless there is agreement within the community as to the social rights and obligations of its members: in other words, as to the practical laws which should govern the behaviour of the individual within the society and the society's attitude towards the individual and his actions. This is the innermost reason why legislation plays so great a role within the ideology of Islam, and why the Qur'an consistently intertwines its moral and spiritual exhortation with ordinances relating to practical aspects of social life. Now one of the main problems facing any society is the safeguarding of the lives and the individual security of its members: and so it is understandable that laws relating to homicide and its punishment are dealt with prominently at this place. (It should be borne in mind that "The Cow" was the first surah revealed in Medina, that is, at the time when the Muslim community had just become established as an independent social entity.) As for the term qisas occurring at the beginning of the above passage, it must be pointed out that - according to all the classical commentators - it is almost synonymous with musawah, i.e., "making a thing equal [to another thing]": in this instance, making the punishment equal (or appropriate) to the crime - a meaning which is best rendered as "just retribution" and not (as has been often, and erroneously, done) as "retaliation". Seeing that the Qur'an speaks here of "cases of killing" (fi 'l-qatla, lit., "in the matter of the killed") in general, and taking into account that this expression covers all possible cases of homicide - premeditated murder, murder under extreme provocation, culpable homicide, accidental manslaughter, and so forth - it is obvious that the taking of a life for a life (implied in the term "retaliation") would not in every case correspond to the demands of equity. (This has been made clear, for instance, in 4:92, where legal restitution for unintentional homicide is dealt with.) Read in conjunction with the term "just retribution" which introduces this passage, it is clear that the stipulation "the free for the free, the slave for the slave, the woman for the woman" cannot - and has not been intended to - be taken in its literal, restrictive sense: for this would preclude its application to many cases of homicide, e.g., the killing of a free man by a slave, or of a woman by a man, or vice-versa. Thus, the above stipulation must be regarded as an example of the elliptical mode of expression (ijaz) so frequently employed in the Qur'an, and can have but one meaning, namely: "if a free man has committed the crime, the free man must be punished; if a slave has commited the crime...", etc. - in other words, whatever the status of the guilty person, he or she (and he or she alone) is to be punished in a manner appropriate to the crime.