הֵ֛ן לֹֽא־קָצְרָ֥ה יַד־יְהוָ֖ה מֵֽהוֹשִׁ֑יעַ וְלֹא־כָבְדָ֥ה אָזְנ֖וֹ מִשְּׁמֽוֹעַ׃
Eis que a mão do SENHOR não está encolhida, para que não possa salvar; nem surdo o seu ouvido, para que não possa ouvir;
Rashi on Isaiah
Behold, the hand of the Lord is not too short Your failure to be delivered is not due to the shortness of My hand.
Ibn Ezra on Isaiah
The prophet continues to reprove those who are in exile, and concludes with the words, As for me, this is my covenant, etc. (ver. 21). Thus all these chapters are well connected together in one whole.1The leading idea in all these chapters from c. xl., according to I. E., is to prove that the Israelites are wrong in disbelieving the prophet, and manifesting want of confidence in the Divine promise of a perfect and lasting salvatior. I. E. points out, therefore, how this chapter begins with, Behold, the Lord’s hand is not shortened, etc., and concludes with the declaration that the truth of the words which God commanded the prophet to proclaim, will be established for ever.
Ibn Ezra on Isaiah
Behold the Lord’s hand, etc. Know that the Lord is not unable to help you.