'Delta' in the Bible

Who is this that rises up like the Nile [River],Like the rivers [in the delta of Egypt] whose waters surge about?

Speak and say, ‘Thus says the Lord God,“Behold, I am against you, Pharaoh king of Egypt,The great monster that lies in the midst of his rivers,[Boastfully] declaring, ‘My Nile is my own, and I have made it for myself.’

“And I will make the rivers [of the Nile delta] dryAnd sell the land into the hands of evil men;I will make the land desolateAnd all that is in it,By the hand of strangers. I the Lord have spoken.”

"The river delta will consist of swamps and marshes that will remain a salt water wetland preserve.