וְגִבַּרְתִּ֣י ׀ אֶת־בֵּ֣ית יְהוּדָ֗ה וְאֶת־בֵּ֤ית יוֹסֵף֙ אוֹשִׁ֔יעַ וְהֽוֹשְׁבוֹתִים֙ כִּ֣י רִֽחַמְתִּ֔ים וְהָי֖וּ כַּאֲשֶׁ֣ר לֹֽא־זְנַחְתִּ֑ים כִּ֗י אֲנִ֛י יְהוָ֥ה אֱלֹהֵיהֶ֖ם וְאֶעֱנֵֽם׃
Porque yo fortificaré la casa de Judá, y guardaré la casa de José; y harélos volver, porque de ellos tendré piedad; y serán como si no los hubiera desechado; porque yo soy SEÑOR su Dios, que los oiré.
Ramban
AND LET MY NAME BE CALLED ON THEM. Rabbi Abraham ibn Ezra said that it means that all Israel be called by the name Ephraim,57As in the verse: Is Ephraim a darling son unto me? (Jeremiah 31:19), the reference there being to all Israel. just as they are called “the children of Abraham, Isaac, and Jacob.”
This is not correct for Scripture uses the word bahem (on them), [thus referring to both Ephraim and Menasheh], and they were not called by the name of Menasheh. But perhaps this is because they were called the house of Joseph.58Zechariah 10:6. And I will help the house of Joseph.
The correct interpretation though is that their race and their name will exist forever, and the name of Abraham, Isaac and Jacob will forever be upon them.
This is not correct for Scripture uses the word bahem (on them), [thus referring to both Ephraim and Menasheh], and they were not called by the name of Menasheh. But perhaps this is because they were called the house of Joseph.58Zechariah 10:6. And I will help the house of Joseph.
The correct interpretation though is that their race and their name will exist forever, and the name of Abraham, Isaac and Jacob will forever be upon them.