Then the LORD said to Moses, “Go to Pharaoh, for I have hardened his heart and the hearts of his officials, that I may perform these miraculous signs of Mine among them,
Jewish Publication Society of America Version (JPS1917) - Exodus 10:1 >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 show these My signs in the midst of them;