וְנָתַתִּ֛י מַפְתֵּ֥חַ בֵּית־דָּוִ֖ד עַל־שִׁכְמ֑וֹ וּפָתַח֙ וְאֵ֣ין סֹגֵ֔ר וְסָגַ֖ר וְאֵ֥ין פֹּתֵֽחַ׃
Porei a chave da casa de Davi sobre o seu ombro; ele abrirá, e ninguém fechará; fechará, e ninguém abrirá.
Rashi
the craftsmen and the sentries of the gates Torah scholars who were exiled with Jeconiah, and I already explained in the Book of Kings (II 24:14) הֶחָרָש וְהַמַּסְגֵּר (les maitres, les portiers in French) the masters, the sentries of the gates. Another explanation: הֶחָרָש וְהַמַּסְגֵּר: הֶחָרָש is an expression of silence, וְהַמַּסְגֵּר is an expression of closing. That is to say, great sages in Torah, to the extent that when one of them would speak, everyone would remain silent. מַסְגֵּר means that when they would close the discussion, no one would reopen it.
Rashi
Craftsmen and gatekeepers. [Targum] Yonoson rendered the craftsmen and the sentries of the gates. But, our Rabbis said that these were great Torah scholars,7I.e., “craftsmen and gatekeepers” is a metaphoric allusion to Torah scholars. See Maseches Sanhedrin 38a. that when one would begin [to speak], all remained silent [=חרש], as it is written, “Be silent before Me, O islands.”8Yeshayohu 41:1. ”מסגר” [is one who] all sit before him and learn from him, as it is stated, ”And he will open, and no one will close, and he will close, and no one will open.”9Ibid 22:22. 10See Maseches Gittin 88a.