Exodus 11:9
“And the Lord said unto Moses, Pharaoh shall not hearken unto you; that my wonders may be multiplied in the land of Egypt.”
But against any of the children of Israel shall not a dog move his tongue, against man or beast: that ye may know how that the Lord doth put a difference between the Egyptians and Israel.
And all these thy servants shall come down unto me, and bow down themselves unto me, saying, Get thee out, and all the people that follow thee: and after that I will go out. And he went out from Pharaoh in a great anger.
And the Lord said unto Moses, Pharaoh shall not hearken unto you; that my wonders may be multiplied in the land of Egypt.
And Moses and Aaron did all these wonders before Pharaoh: and the Lord hardened Pharaoh’s heart, so that he would not let the children of Israel go out of his land.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“And I will harden Pharaoh’s heart, and multiply my signs and my wonders in the land of Egypt.”
“But Pharaoh shall not hearken unto you, that I may lay my hand upon Egypt, and bring forth mine armies, and my people the children of Israel, out of the land of Egypt by great judgments.”
“And I will harden Pharaoh’s heart, and multiply my signs and my wonders in the land of Egypt.”
“And the Lord said unto Moses, Go in unto Pharaoh: for I have hardened his heart, and the heart of his servants, that I might shew these my signs before him:”
“So then it is not of him that willeth, nor of him that runneth, but of God that sheweth mercy.”