מוֹלִיךְ֙ לִימִ֣ין מֹשֶׁ֔ה זְר֖וֹעַ תִּפְאַרְתּ֑וֹ בּ֤וֹקֵֽעַ מַ֙יִם֙ מִפְּנֵיהֶ֔ם לַעֲשׂ֥וֹת ל֖וֹ שֵׁ֥ם עוֹלָֽם׃
『那使祂榮耀的膀臂伴在摩西右手邊同行、在他們面前把水分開、為自己立下永遠名聲的，在哪裡？』
Rashi
He led at Moses’ right the arm of His glory The Holy One, blessed be He, led at Moses’ right the arm of His might. Every time he required the aid of the Holy One, blessed be He, His arm was ready at his right.
Ibn Ezra
His glorious arm: His angel, that went before the camp of Israel (Ex. 14:19)