It is enjoined therefore that sacrificers, when they have flayed the burnt offering, shall cut it up joint by joint, in order in the first place that the soul may appear naked without any coverings, such as are made by empty and false opinions; and in the second place that it may be able to receive suitable divisions, for virtue is a whole and one, which is divided into corresponding species, such as prudence and temperance, justice and courage, that we, knowing the differences of each of these qualities, may submit to a voluntary service of them both in their entirety and in particulars.
 Genesis xxv, 29. 
 

 And let us consider how we may train the soul so that it may not, from being thrown into a state of confusion, be deceived by general and unintelligible appearances, but that by making proper divisions of things it may be able to inspect and examine each separate thing with all accuracy, adopting language which will not, through being borne forward by disorderly impetuosity, cause any indistinctness, but being divided into its appropriate headings and into the demonstrations suitable to each, will be compounded like some living animal of perfect parts, properly put together. And we ought to apply ourselves to a continual meditation on and practise of these things, if we wish the use of them to be confirmed in us, as after having touched knowledge, not to abide in it is like tasting meat and drink, but being prevented from feeding on them in sufficient quantities.
 After those that are cut up, it was very natural to make an offering of such as are ground; that is to say, it is natural after the division to dwell among and pass one’s leisure among what had been thus discovered, for continued practise produces firm and stable knowledge, just as continued indifference produces ignorance. Therefore numbers of men from fear of the labour of practise, have lost the strength with which they were endowed by nature, whom those men have not imitated who nourished their souls on prophecy, which is signified under the name of manna, "for they ground it in mills or beat it in a mortar, and baked it in pans, and made cakes of it." Numbers xi. 8. every one of them knowing well how to knead and soften the heavenly language of virtue for the sake of making the intellect firmer.
 When therefore you confess that the young and fresh corn, that is to say vigour, and the toasted corn, that is to say speech tried in the fire and invincible, and the corn cut up, which signifies the cutting up and division of things, and the corn ground, that is to say anxious care about and examination into what has been found out, do all proceed from God, you will then be offering a sacrifice of the first fruits of the first produce, of the first and best things which the soul has brought forth; and even if we are slow, nevertheless he does not delay to take to himself those who are fit to worship him. For "I will take," " says he, "you to be a people for
 Numbers xi. 8. 
 
myself, and I will be your God, and you shall be my people: I am the Lord."