창세기 18:4의 Musar

It is obvious to me that the מצוה of being hospitable to guests, (which is certainly included in the overall commandment to follow in G–d's footsteps), represents an additional virtue. The Torah has singled out this story of Abraham personally performing chores to entertain these strangers. It also alludes to the reward accruing to him, i.e. that everything he did personally for these guests, G–d later on personally did for Abraham's descendants, whereas whatever Abraham had designated to be done by someone else, G–d also performed for the Jewish people only by means of one of His agents. You should not think that all we talk about here is merely a part of a virtue. Whoever performs such an act such as Abraham's, performs the positive commandment of emulating G–d, and he will receive the reward due to someone who has performed a מצוה which has been specifically commanded. G–d performs acts of hospitality at all times, at every moment. Were He to desist from doing so for even a single moment the world would be lost. All creatures are His guests, we are all like strangers vis-a-vis G–d, and just as strangers we need a place to sleep. G–d enables us to survive. If He were to withdraw life-support for even a moment, we would all perish.

When Abraham told the three angels (men) at the time he invited them to come and rest under the tree, he already wanted to examine them as to their ritual purity. He did not say "rest under a tree," but "rest under THE tree." When Adam sinned, he sinned with the tree of knowledge. That tree brought death into the world. G–d Himself is on record as evicting Adam from the garden of Eden so that he should not be able to eat from the tree of life and thus live forever (Genesis 3,22).

I have already discussed why Abraham thought that if these guests had been human that they must have been sun-worshipers worshiping the dust of their feet. In order to remove that dust, he asked that they wash their feet by saying: יוקח נא מעט מים ורחצו רגליכם. We need to understand why he inserted the word מעט, a little, when he referred to the water they would wash their feet with. There is a deep significance in this.

On 18,4 והשענו תחת העץ, Onkelos says "rest under the tree." This was appropriate in the event that these three visitors were humans. The branches of the tree would provide protection against the heat of the day.

To come back to יקח נא מעט מים ורחצו רגליכם; Kabbalists know that the angels מטטרון and סנדלפון are known as מנעל and סנדל, shoe and sandal with which the "feet" of the emanation מלכות are covered, and concerning which we read in Proverbs 5,5: רגליה יורדות מות, "Her feet descend towards death" (the reference is to an immoral woman). These shoes and sandals are a hyperbole for the קליפות around which the wicked people walk. The "tree" mentioned by Rabbi Shimon bar Yochai in the Zohar without further identification, is the tree of knowledge. All that is below the emanation מלכות, is somehow associated with that emanation. The angels themselves adhere to the essence of the tree of knowledge of good and evil in its designation as "good." The fact that that tree is also associated with "evil," is something peripheral, i.e. when wicked people try to use that tree they fail to penetrate to its essence due to their קליפות, which preclude their getting to the essence which is” good." [The last few lines are my substitution of the author who quotes on the subject from Pardes Rimonim Shaar Heychal Hatemurot chapter 7. Ed.] When Abraham invited the angels to rest under the tree, he referred to the essence of the tree of knowledge and when he said וסעדו לבכם, "refresh your heart," instead of לבבכם, "refresh your hearts," he indicated that he was aware that they were angels and therefore had only one heart, seeing angels have no evil urge.

Joshua and Caleb countered that whatever deity had protected the people of Canaan thus far had already departed from them, i.e. סר צלם מעליהם (14,9), and they had no longer any merits which would act as protection for them. The measure of guilt of the Emorite was by now such that it no longer could be a hindrance to Israel. The expression סר צלם, may be interpreted according to the Zohar on Genesis 18,4: "and recline under the tree." The significance of that tree was that Abraham could tell by it who was truly loyal to G–d, and who cleaved to idol worship. The tree would extend its branches towards those who believed in G–d and would envelop them in its shade. The same branches would withdraw when a person worshiping idols sat under it. Abraham would notice this and begin to engage such a person in a religious dialogue, pointing out the futility of worshiping idols. He would not move from there until he had converted the person in question. Similarly the tree would welcome those who were ritually pure, while rejecting those who were not. There was a well underneath that tree. The waters in the well would rise towards a person in need of purification. As soon as Abraham noticed, he would purify them by ritually pure water. What Moses had commanded the spies about investigating "a tree" (13,20), referred to the tradition mentioned in the Zohar. He wanted to find out how that tree would react when the spies were under it, if it would offer its shade, i.e. a sign that the spies were sincere, if it did not, it would signal the sinful motives of these people.