American Standard Version (ASV):
And Jehovah said unto Moses, Go in unto Pharaoh: for I have hardened his heart, and the heart of his servants, that I may show these my signs in the midst of them,
King James Version (KJV):
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: