Wherever this subject is mentioned, this is its meaning. Consider it well, and reflect on it.
IT is also the object of the perfect Law to make man reject, despise, and reduce his desires as much as is in his power. He should only give way to them when absolutely necessary. It is well known that it is intemperance in eating, drinking, and sexual intercourse that people mostly rave and indulge in; and these very things counteract the ulterior perfection of man, impede at the same time the development of his first perfection, and generally disturb the social order of the country and the economy of the family. For by following entirely the guidance of lust, in the manner of fools, man loses his intellectual energy, injures his body, and perishes before his natural time; sighs and cares multiply; there is an increase of envy, hatred, and warfare for the purpose of taking what another possesses. The cause of all this is the circumstance that the ignorant considers physical enjoyment as an object to be sought for its own sake. God in His wisdom has therefore given us such commandments as would counteract that object, and prevent us altogether from directing our attention to it, and has debarred us from everything that leads only to excessive desire and lust. This is an important thing included in the objects of our Law. See how the Law commanded to slay a person from whose conduct it is evident that he will go too far in seeking the enjoyment of eating and drinking. I mean "the rebellious and stubborn son"; he is described as "a glutton and a drunkard" (Deut. xxi. 20). The Law commands to stone him and to remove him from society lest he grow up in this character, and kill many, and injure the condition of good men by his great lust.
Politeness is another virtue promoted by the Law. Man shall listen to the words of his neighbour; he shall not be obstinate, but shall yield to the wish of his fellow-men, respond to their appeal, act according to their desire, and do what they like. Thus the Law commands, "Circumcise therefore the foreskin of your heart, and be no more stiff-necked" (Deut. x. 16); "Take heed and hearken" (ibid. xxvii. 9). "If you be willing and obedient" (Isa. i. 19). Those who listen [to the words of others] and accept as much as is right are represented as saying, "We will hear and do" (Deut. v. 24), or in a figurative style, "Draw me, we will run after thee" (Song i. 4).
The Law is also intended to give its followers purity and holiness; by teaching them to suppress sensuality, to guard against it and to reduce it to a minimum, as will be explained by us. For when God commanded [Moses] to sanctify the people for the receiving of the Law, and said, "Sanctify them to-day and to-morrow" (Exod. xix. 10), Moses [in obedience to this command] said to the people, "Come not at your wives" (ibid. ver. 15). Here it is clearly stated that sanctification consists in absence of sensuality. But abstinence from drinking wine is also called holiness; in reference to the Nazarite it is therefore said, "He shall be holy" (Num. vi. 5). According to Siphra the words, "sanctify yourselves and be ye holy" (Lev. xx. 7), refer to the sanctification effected by performing the divine commands. As the obedience to such precepts as have been mentioned above is called by the