All these wonders Moses and Aaron did before Pharaoh: but the Lord made Pharaoh's heart hard, and he did not let the children of Israel go out of his land.
And the Lord said to Moses, When you go back to Egypt, see that you do before Pharaoh all the wonders which I have given you power to do: but I will make his heart hard and he will not let the people go.
O Lord, why do you send us wandering from your ways, making our hearts hard, so that we have no fear of you? Come back, because of your servants, the tribes of your heritage.
He has made their eyes blind, and their hearts hard; for fear that they might see with their eyes and get knowledge with their hearts, and be changed, and I might make them well.
But Sihon, king of Heshbon, would not let us go through; for the Lord your God made his spirit hard and his heart strong, so that he might give him up into your hands as at this day.
For the Lord made them strong in heart to go to war against Israel, so that he might give them up to the curse without mercy, and that destruction might come on them, as the Lord had given orders to Moses.
Why do you make your hearts hard, like the hearts of Pharaoh and the Egyptians? When he had made sport of them, did they not let the people go, and they went away?