Tafsiran Yesaya 1:17: Rashi, Ibn Ezra & Tze'enah Ure'enah

Learn It is punctuated ‘raphe,’ weak, without a dagesh. This is from the form לָמֹד, learn to do good. One who teaches himself is of the ‘kal’ form. Therefore, its imperative plural is voweled with a ‘chirik’ like אִמְרוּ, שִׁמְעוּ, but one who teaches others is of the form of the ‘heavy conjugation’ (pi’el) with a ‘dagesh,’ and if one comes to command a number of people, the word is voweled לַמְּדוּ. And so, דִּרְשׁוּ, from the form דְרשׁ, but אַשְּׁרוּ in which the ‘shin’ has a ‘dagesh,’ is from the ‘heavy conjugation,’ and from the form אַשֵּׁר ; therefore, the imperative plural is voweled with a ‘patach’ like בַּשְּׂרוּ, סַפְּרוּ, דַּבְּרוּ.

להיטב═היטב To do well. It is infinitive.

strengthen the robbed Heb. אַשְּׁרוּ חָמוֹץ. This is a Mishnaic term, אֲשַׁרְנוּהִי, “we have verified it” (Ketuboth 21a); “if I had strength (אֲיַשֵּׁר)” (Gittin 30b); “May your strength be strengthened (יִישַׁר)” (Shabbath 87a). Another explanation is: Lead him in the path of truth to acquire what rightfully belongs to him. An expression of: (Job 23:11) “My foot held its path (בֲּאֲשׁוּרוֹ)”; (Prov. 23:19) “And go (וְאַשֵׁר) in the way of your heart.”

(perform justice So-and-so is innocent and so-and- so is guilty.

plead the case of the widow Endeavor in their quarrel to plead for her, for she cannot go out to pursue her opponents.)

the robbed Heb. חָמוֹץ, similar to (Ps. 71:4) “from the hand of the unrighteous and the robber (וּמְחַמֵּץ).”