"And the LORD said unto Moses, When thou goest to return into Egypt,
see that thou do all those wonders before Pharaoh,
which I have put in thine hand:
but I will harden his heart, that he shall not let the people go."
"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: "