That Pharaohs’ belief came after the water enclosed him and he was drowning in it, however, before death over took him completely.
And this possibility – which Sarkhi imagined to be valid – is incorrect. For the people to say in this physical world means the utterance of words, and this cannot be achieved without a medium in which he utters through, which is the air. So with the occlusion of water the utterance of Pharaoh’s voice was made absent due to the closure of the pathway of air, thus it is not possible for him to say anything.
It should also be noted that the water surrounding Pharaoh was two mountains.