מֵקִים֙ דְּבַ֣ר עַבְדּ֔וֹ וַעֲצַ֥ת מַלְאָכָ֖יו יַשְׁלִ֑ים הָאֹמֵ֨ר לִירוּשָׁלִַ֜ם תּוּשָׁ֗ב וּלְעָרֵ֤י יְהוּדָה֙ תִּבָּנֶ֔ינָה וְחָרְבוֹתֶ֖יהָ אֲקוֹמֵֽם׃
That confirmeth the word of His servant, And performeth the counsel of His messengers; That saith of Jerusalem: ‘She shall be inhabited’; And of the cities of Judah: ‘They shall be built, And I will raise up the waste places thereof’;
Ibn Ezra on Isaiah
His servant. The prophet himself.44I. E. here neglects the rule of the parallelism, which he repeatedly recommends; for that rule demands that עברו and מלאכיו should have the same meaning) and since the latter is a plural, signifying his messengers, עבדו is likewise to be taken in a collective sense, and referred not only to the one prophet who is here speaking, but to all prophets. The word of his servant, that Jerusalem shall be inhabited.
Rashi on Isaiah
and the counsel of His messengers One angel said to Jacob (Gen. 32:27), “Israel shall be your name,” and I fulfilled his words. Here too, I will fulfill the counsel of My prophets who say concerning Jerusalem, “It shall be settled.”