וַיֹּ֨אמֶר אֵלָ֤יו יְהוָה֙ לֶךְ־רֵ֔ד וְעָלִ֥יתָ אַתָּ֖ה וְאַהֲרֹ֣ן עִמָּ֑ךְ וְהַכֹּהֲנִ֣ים וְהָעָ֗ם אַל־יֶֽהֶרְס֛וּ לַעֲלֹ֥ת אֶל־יְהוָ֖ה פֶּן־יִפְרָץ־בָּֽם׃
И сказал ему Господь: 'Иди, сойди, и ты взойдешь, и Аарон с тобою; но пусть священники и народ не прорвутся, чтобы приблизиться к Господу, чтобы Он не прорвался на них.'
Siftei Chakhamim
They received their retribution at Sinai: “Moshe, alone, drew near . . .” Re”m wrote: “It is puzzling that Rashi here explains the verse from Shemos 24:2 as implying that ‘But they did not draw near’ refers only to the elders. This is not true, because the previous verse (24:1) states: ‘Ascend to Adonoy, you and Aharon, Nadav, and Avihu, and seventy of the elders of Israel.’ Then is written, ‘Moshe, alone, drew near . . .’ Yet if Hashem turned everyone back as a punishment, what was Aharon’s sin? Similarly with Nadav and Avihu, who were not among the seventy elders. [What was their sin?]” Re”m left the matter unresolved. But to me it seems not so problematic. For Rashi explains in Parashas Yisro (Shemos 19:24): “You [Moshe] will have your own designated area [when Hashem descends on Mt. Sinai], and also Aharon will have his own designated area, whereas the people may not break through their position at all.” Thus we see that the elders did not have their own designated area but stood among the people, and this was the punishment. And as for Nadav and Avihu, perhaps they stood in the same designated area as Aharon. (Kitzur Mizrachi)
Sforno
ואל משה אמר עלה!, after He had finished telling him כה תאמר אל בני ישראל אתם ראיתם in 20,18. At that time He had explained to the people that they must not try and “reach” Him through intermediaries, but that all that was required was an altar made of earth, coupled with the meticulous observance of His commandments as spelled out in the Ten Commandments. The verse tells us that all of these things were explained to the whole nation. However, ואל משה אמר, to Moses himself G’d had said that he should come up to the mountain just as he had been commanded to do already before the revelation, when G’d had said to him in 19,14 לך רד ועלית אתה ואהרן עמך.
Rabbeinu Bahya
A more rational approach: The author speaks of the Kingdom of Heaven. Solomon warns man not to approach it over and beyond one’s mental capacities. We find other verses in Scripture describing G’d as מושל, ruler, such as Psalms 22,29: כי לה' המלוכה ומושל בגויים, “for kingship is the Lord’s and He rules the nations.” Keeping this thought in mind, Solomon warns you that when you sit down to eat with the ruler you better be clear what nearness to G’d entails, i.e. who qualifies for such an elevated station in life. You must appreciate that the food served at G’d’s table is soul-food, not of the type that is served at the table of a king of flesh and blood. The food you receive there is known as חכמה, the spiritual equivalent to the לחם, “bread,” served here on earth by human kings. The words בין תבין את אשר לפניך mean in essence that you must be sure to comprehend things about the nature of G’d by what is לפניך, “by what is before your eyes,” i.e. by the historical record of G’d’s actions. This is also what David said in Psalms 8,4: “when I behold Your heavens, the work of Your fingers, the moon and the stars that You set in place.” The word בין, “between,” suggests that there are two distinct kinds of insights that one must possess in order to properly appreciate the grandeur of G’d and His impact on history as well as on our individual fates. The very concept G’d, Creator, is not a point of departure in one’s thinking but is a conclusion one arrives at after having weighed all the phenomena we are familiar with. This is the meaning of Deut. 4,39: והשבות אל לבביך כי ה' הוא האלו-הים, “and let your heart come to the conclusion that the Lord is your G’d, etc.” When Elijah experienced a personal revelation at Mount Chorev after he had been disillusioned subsequent to what he thought would be G’d’s triumph at Mount Carmel, he had to experience a variety of supernatural phenomena before finally, a most insignificant phenomenon, a whisper, proved to be the real thing, the Presence of G’d (Kings I 19,11-12).
It is due to such considerations that Solomon hints that several insights have to be gained in order to appreciate certain truths about G’d.
If one is an intellectually oriented person, Solomon warns that one should not allow one’s intellectual curiosity to cause one to bite off more than one can chew (intellectually speaking); he couches the warning in these words: “thrust a knife in your gullet.” What he means is simple: you would do better to commit suicide than to reach beyond your intellectual capacity in coming close to the Lord. Solomon phrases this more clearly in Kohelet 7,16: “don’t act the wise man to excess or you will be dumbfounded.” You can see what happened to the two sons of Aaron who were guilty precisely of the arrogance of overestimating their mental/moral capabilities when they were described at the revelation on Mount Sinai as feasting their eyes on divine visions, breaching barriers that had been designed to prevent precisely such a disaster from occurring (compare Exodus 19,24 as well as 24,10). Death was decreed for them because they approached domains which were beyond what they were allowed to approach. This is the meaning of the opening lines of our Parshah.
It is due to such considerations that Solomon hints that several insights have to be gained in order to appreciate certain truths about G’d.
If one is an intellectually oriented person, Solomon warns that one should not allow one’s intellectual curiosity to cause one to bite off more than one can chew (intellectually speaking); he couches the warning in these words: “thrust a knife in your gullet.” What he means is simple: you would do better to commit suicide than to reach beyond your intellectual capacity in coming close to the Lord. Solomon phrases this more clearly in Kohelet 7,16: “don’t act the wise man to excess or you will be dumbfounded.” You can see what happened to the two sons of Aaron who were guilty precisely of the arrogance of overestimating their mental/moral capabilities when they were described at the revelation on Mount Sinai as feasting their eyes on divine visions, breaching barriers that had been designed to prevent precisely such a disaster from occurring (compare Exodus 19,24 as well as 24,10). Death was decreed for them because they approached domains which were beyond what they were allowed to approach. This is the meaning of the opening lines of our Parshah.