Tafsiran Yesaya 41:21: Rashi & Ibn Ezra

קָרְב֥וּ רִֽיבְכֶ֖ם יֹאמַ֣ר יְהוָ֑ה הַגִּ֙ישׁוּ֙ עֲצֻמ֣וֹתֵיכֶ֔ם יֹאמַ֖ר מֶ֥לֶךְ יַעֲקֹֽב׃

“Ajukanlah perkaramu,” firman Yang Mahakekal; “kemukakanlah alasan-alasanmu yang kuat,” firman Raja Yakub.

Rashi

Present your plea All the heathens ([mss. K’li Paz:] nations), come and contend and debate with My children.
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Ibn Ezra

קרבו Produce. It is imperative Piel after the form of ברכו praise (Jud. 5:2).
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Rashi

your strong points Heb. עַצֻּמוֹתֵיכֶם, Your sturdy and strong arguments. This is an expression of a dispute in Mishnaic Hebrew: “Two who were engaged in a legal dispute (מִתְעַצְּמִין),” in Tractate Sanhedrin (31b).
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