He turned Pharaoh over to Satan to be confirmed in the obstinacy of his breast. This is why he had previously said, "I will restrain his heart" [Ex. 4:21]. The people go forth from Egypt; as enemies the inhabitants of the region come to meet them. What has stirred them up? Moses, indeed, declared to the people that it was the Lord who stiffened their hearts [Deut. 2:30].
- John Calvin