Tanach · Rishonim on Tanach · Ibn Ezra · Torah

Ibn Ezra on Exodus 7:10/אבן עזרא על שמות ז׳:י׳

אויבא משה. גם זה מופת, שהמטה היה לתנין, ואינו דומה למופת שעשה לישראל כי לא נהפך רק לנחש, ויפת אמר נחש הוא תנין:
1AND MOSES AND AARON WENT IN. This too, namely, that the rod became a tannin (serpent), was a wonder.46 It was not like the wonder that he did for Israel,47 as there it only changed into a nachash (serpent).48. In Ex. 4:3 the rod is described as changing into a nachash. However, Yefet says that nachash (serpent) and tannin (serpent) are one and the same.49