וַתֹּצֵ֛א אֶת־עַמְּךָ֥ אֶת־יִשְׂרָאֵ֖ל מֵאֶ֣רֶץ מִצְרָ֑יִם בְּאֹת֣וֹת וּבְמוֹפְתִ֗ים וּבְיָ֤ד חֲזָקָה֙ וּבְאֶזְר֣וֹעַ נְטוּיָ֔ה וּבְמוֹרָ֖א גָּדֽוֹל׃
Y sacaste tu pueblo Israel de tierra de Egipto con señales y portentos, y con mano fuerte y brazo extendido, con terror grande;
Rashbam
האתרים, the letter א at the beginning is similar to the letter א at the beginning of the word אפרוח or in the word אתמול, which is a variant of תמול, meaning “yesterday.” There are many occasions when the letter א serves as the beginning of a word.
Ibn Ezra
The ’alef in the word young ones is extraneous, like the ’alef in “and with your [actually, “an” — Translator] arm” [Jeremiah 32: 21]. The point of this commandment is that it would be profoundly cruel if “the mother is dashed in pieces upon her children” [Hosea 10: 14], just as in the case of an ox, or a lamb [Leviticus 22: 28].
Chizkuni
אמרת, according to Rash’bam,“you have become as if betrothed;” An alternate interpretation: you traded, exchanged; you have abandoned all other powers in nature by accepting Me as comprising all those forces combined. (seeing that I created all these forces.) He, in turn, has abandoned all attempts to directly educate the other nations by concentrating on you as His pilot project. [Some of these words are mine Ed.] [In order to understand this interpretation, the letter א in the words האמרת and האמירך have to be considered as non existent, something similar being the case in Jeremiah 32,21: ובאזרוע as well as in Kings II 4,2: דאסוך, and in Psalms 90,4: אתמול. A different interpretation: the word האמירך is an expression of admiration, praise, as in Psalms 94,4: יתאמת, ”will they indulge in self-glorification? [The psalmist speaks of the wicked. Ed.]