Moses and Aaron did all these wonders before Pharaoh, and the Lord hardened Pharaoh’s heart, and he did not let the people 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 miracles that I have put in your power. But I will harden his heart, so that he will not let the people go.
Why should you harden your hearts as the Egyptians and Pharaoh hardened their hearts? After he had dealt severely with them, did they not send the people away, and they departed?
But Sihon the king of Heshbon would not let us pass by him, for the Lord your God hardened his spirit and made his heart obstinate, that he might give him into your hand, as he is this day.
For it was the Lord’s doing to harden their hearts that they should come against Israel in battle, in order that they should be devoted to destruction and should receive no mercy but be destroyed, just as the Lord commanded Moses.
O Lord, why do you make us wander from your ways and harden our heart, so that we fear you not? Return for the sake of your servants, the tribes of your heritage.