Tanach · Rishonim on Tanach · Ramban · Torah
Ramban on Exodus 7:23/רמב"ן על שמות ז׳:כ״ג
אגַּם לָזֹאת לְמוֹפֵת הַמַּטֶּה שֶׁנֶּהְפַּךְ לְתַנִּין וְגַם לָזֶה שֶׁל דָּם. וְיוֹתֵר נָכוֹן גַּם לָזֹאת שֶׁהָיְתָה מַכָּה, וְהָיָה לוֹ לִירֹא פֶּן תִּהְיֶה בּוֹ יַד הַשֵּׁם מֵעַתָּה:
1NEITHER DID HE SET HIS HEART TO THIS ALSO. I.e., to the wonder of the rod turning into a serpent,128 nor to that of the waters turning into blood. [Thus the language of Rashi.] A more correct interpretation would appear to be that to this also means “to this also which was indeed a plague,” [as distinguished from the wonder of the rod turning into a serpent, which was not a plague at all], and he should have feared lest the power of G-d be upon him from now on.129