akedah ("sacrifice") should be taught through Abraham and a man like Isaac. For Abraham was the first to teach the Unity of God, to establish the faith (in Him), to cause it to remain among coming generations, and to win his fellow-men for his doctrine; as Scripture says of him: "I know him, that he will command," etc. (Gen. viii. 19). In the same manner as he was followed by others in his true and valuable opinions when they were heard from him, so also the principles should be accepted that may be learnt from his actions; especially from the act by which he confirmed the principle of the truth of prophecy, and showed how far we must go in the fear and the love of God.
This is the way how we have to understand the accounts of trials; we must not think that God desires to examine us and to try us in order to know what He did not know before. Far is this from Him; He is far above that which ignorant and foolish people imagine concerning Him, in the evil of their thoughts. Note this.
CHAPTER XXV
[MAN'S] actions are divided as regards their object into four classes; they are either purposeless, unimportant, in vain, or good. An action is in vain if the object which is sought by it is not obtained on account of some obstacles. Thus people frequently use the phrase "thou hast worked in vain" in reference to a person who looks out for some one and cannot find him: or who undertakes the troubles of a journey for his business without profit. Our endeavours and exertions are in vain as regards a patient that is not cured. This applies to all actions which are intended for certain purposes that are not realized. Purposeless are such actions, which serve no purpose at all. Some persons, e.g., do something with their hands whilst thinking of something else. The actions of the insane and confused are of this kind. Unimportant are such actions by which a trivial object is sought, an object that is not necessary and is not of great use. This is the case when a person dances without seeking to benefit his digestion by that exercise, or performs certain actions for the purpose of causing laughter. Such actions are certainly mere pastimes. Whether an action belongs to this class or not depends on the intention of those who perform it, and on the degree of their perfection. For many things are necessary or very useful in the opinion of one person and superfluous in the opinion of another. E.g., bodily exercise, in its different kinds, is necessary for the proper preservation of health in the opinion of him who understands the science of medicine; writing is considered as very useful by scholars. When people take exercise by playing with the ball, wrestling, stretching out the hands or keeping back the breathing, or do certain things as preparation for writing, shape the pen and get the paper ready, such actions are mere pastimes in the eyes of the ignorant, but the wise do not consider them as unimportant. Useful are such actions as serve a proper purpose: being either necessary or useful for the purpose which is to be attained. This division [of man's actions] is, as I believe, not open to any objection. For every action is either intended for a certain purpose or is not intended; and if intended for a certain purpose, that purpose
