כִּֽי־נָסַ֨ךְ עֲלֵיכֶ֤ם יְהוָה֙ ר֣וּחַ תַּרְדֵּמָ֔ה וַיְעַצֵּ֖ם אֶת־עֵֽינֵיכֶ֑ם אֶת־הַנְּבִיאִ֛ים וְאֶת־רָאשֵׁיכֶ֥ם הַחֹזִ֖ים כִּסָּֽה׃
Car l’Éternel a répandu sur vous un esprit de torpeur, il a fermé vos yeux les prophètes et voilé vos têtes les voyants.
Rabbeinu Bahya
ואם כל עדת ישראל ישגו, “and if the entire assembly of Israel err, etc.” The “assembly” referred to in our verse is the Sanhedrin, the Supreme Court. It could not be otherwise, as it is quite impossible for the entire Jewish nation by themselves to commit the same sin by mistake. In order to make this point quite clear the Torah added the words ונעלם הדבר מעיני העדה, “and the matter became obscured from the eyes of the congregation.” The Supreme Court, prophets, and Torah scholars are traditionally regarded as “the eyes of the congregation.” An example of this is found in Isaiah 29,10: “and has shut your eyes, the prophets, and covered your heads, the seers.” Isaiah makes it plain that the prophets are the eyes of the people.
We also have a statement by our sages (Sifra, Vayikra 4,2) to that effect where we are told: “I might have supposed that here we are talking about the entire community; to ensure we do not misunderstand the Torah wrote the words עדה, whereas in Numbers 35,24 the Torah also used the word עדה, when describing judgment being pronounced on a murderer; just as there the word עדה refers to a court and not to the whole people, so here too the Supreme Court is meant and not the whole people.” Just as in that instance a court comprising not less than 23 judges is meant, so here too a court of not fewer than 23 judges is meant. What then is the precise meaning of the words כל עדת ישראל? It means a congregation peculiar to the Jewish people, i.e. the great Sanhedrin which had its seat on the Temple Mount.
We also have a statement by our sages (Sifra, Vayikra 4,2) to that effect where we are told: “I might have supposed that here we are talking about the entire community; to ensure we do not misunderstand the Torah wrote the words עדה, whereas in Numbers 35,24 the Torah also used the word עדה, when describing judgment being pronounced on a murderer; just as there the word עדה refers to a court and not to the whole people, so here too the Supreme Court is meant and not the whole people.” Just as in that instance a court comprising not less than 23 judges is meant, so here too a court of not fewer than 23 judges is meant. What then is the precise meaning of the words כל עדת ישראל? It means a congregation peculiar to the Jewish people, i.e. the great Sanhedrin which had its seat on the Temple Mount.
Ibn Ezra
נסך ═ מסך Hath mingled. The two roots have the same meaning, namely, to mingle.
Ibn Ezra
ועוצם And shutteth. Comp. ויעצם and he shut, though not of the same conjugation.
Rashi
and closes (וְעֹצֵם) Comp. (supra 29:10) “And He has closed (וַיְעַצֵּם) your eyes.”
Rashi
And on that day...shall hear, etc. And the curse stated above (v. 10 14): “For the Lord has poured upon you, etc....And the vision of everything has been to you, etc....And the wisdom of his wise men shall be lost,” shall be repealed.