זאת החיה אשר תאכלו, after the Israelites had divested themselves of their spiritual jewelry which they had acquired at Mount Sinai when receiving the Torah, something which if they had been able to retain it, would have given them direct access to the Shechinah without the need for an intermediary, as stated by G’d in the wordsבכל המקום אשר אזכיר את שמי אבא אליך וברכתיך, “in any place where I hear My name mentioned I will come to you and bless you, (Exodus 20,24) a change had now occurred due to the people’s sin at the golden calf. G’d stated that the purpose of the Tabernacle was for Him to take up residence therein so that His essence should not feel disgust at the Jewish people. (Leviticus 26,11). Unfortunately, the golden calf episode had brought about a cardinal change in G’d’s relationship with the people so that He would not allow His Presence to dwell among them even briefly, refused to accompany them on their journey (Exodus 33,3) By means of his lengthy prayers Moses accomplished some improvement in this relationship of G’d to the Israelites by means of the Tabernacle and its furnishings, the priests performing service there, etc. Finally, the people attained the state of grace described as וירא כבוד ה' אל כל העם, “the glory of the Lord appeared to the whole people.” (Leviticus 9,23.) This manifestation of the “glory of the Lord” was the descent of fire from heaven to devour the offerings of the people in the Tabernacle. A way had now been found to refine the character of the people in attitudes and by application of their intelligence so that they would qualify for eternal life (life after death of the body). The method chosen for this was the refinement of the foods eaten by the people. G’d forbade consumption of the kinds of foodstuffs which exert –over a period of time- a negative influence on the people’s character and their intelligence. This is spelled out by the Torah in verse 43 of our chapter where the rationale of the legislation is אל תשקצו בנפשותיכם, another way of saying “do not contaminate your souls.” This is only the effect of observing the negative commandment not to eat forbidden things. There is a positive aspect to this legislation also called והתקדשתם והייתם קדושים “if you will sanctify yourselves you will remain holy.” (Leviticus 15,31). When G’d added כי קדוש אני, this was an incentive to attain the dimension of eternal life similar to G’d. In addition to legislation involving our physical foodstuffs, the Torah introduced legislation designed to refine our body’s other appetites, that of the libido. Legislation governing a husband’s marital relation with a woman who is a menstruant, or who suffers diseases of her sexual organs, or experiencing childbirth (נדה, זבה, יולדת) are intended to sanctify human sperm and to cleanse if from all spiritual contamination, טומאת הגוף. Compare Leviticus 15,31 והזהרתם את בני ישראל מטומאתם, “caution the Children of Israel to abstain from their pollutants.” If they would fail to do so they would forfeit this claim to eternal life. Here the Torah introduces this subject of ritual impurity in connection with animals. In this whole paragraph “defilement” is brought about either by direct touch, indirect touch such a carrying or moving the object by pushing it. Only such animals a are liable to confer contamination of our souls are capable of conferring immediate ritual impurity. Fish, birds, locusts and other creeping things are not capable of conferring such ritual contamination of a person by means of contact other than by means of ingesting them.. The Torah uses the expression שיקוץ to describe their negative fallout when dead instead of the expression טומאה. (compare verse 10,13, 41-42) to describe the negative result if we were to eat such creatures.

ולא תטמאו בהם כי אני ה' אלוקיכם והתקדשתם, do not contaminate yourselves in a manner that will make this contamination really serious, i.e. by eating these creatures or parts of them. Seeing that I am your G’d I desire you to sanctify yourselves so that you will be in a state capable of absorbing holiness on an ongoing basis.

והייתם קדושים כי קדוש אני, so that your holiness will endure indefinitely. The reason why I desire this is because I am holy, and I would like you to become as close to My own essence as it is possible for a creature to become. All of this you will be able to achieve by adhering strictly to the legislation governing what you may eat and what you must eschew. Our sages paraphrased the result of observing this legislation in the following words: “when man sanctifies himself a little, the additional amount of sanctity supplied for him from the heavenly regions is many more times this.” (Yuma 39).

כי אני ה' המעלה אתכם מארץ מצרים להיות לכם לאלוקים. It is no more than appropriate that you do all this in order to attain this level of holiness in order to carry out My will; for indeed when I took you out of Egypt this was expressly in order for you to achieve this spiritual level and for Me to be your G’d, a G’d to Whom you could relate directly without any intermediary. You are meant to be holy forever by emulating My attributes and My way of thinking, in other words, you are to emulate that part of Me which I describe as קדוש, holy, beyond compare.

זאת תורת הבהמה והעוף, this is the underlying motivation of the regulations governing the prohibitions affecting forbidden foods mentioned earlier.