Sorry to bother you, but can I please get the quote in Biblical Hebrew, if you can do that? Because since the quote comes from a movie about the Exodus story, I want be as accurate as possible.
While it may be based on the biblical story of Exodus, it is not actual biblical text. Or at least none that I can recall. If it is based on biblical text, it is so loosely.
I am not aware of any occurrence of such phrase in the book of Exodus either. Or any similarly proverbial expressions, for that matter (at least not in the part that tells the story of the Exodus).