It was very hard for the Egyptian king and a proud and idolatrous people to yield to the requirements of the God of heaven. Very slow was the king of Egypt to yield. While under most grievous affliction he would yield a little; but when the affliction was removed, he would take back all he had granted. Thus, plague after plague was brought upon Egypt, and he yielded no more than he was compelled to by the dreadful visitations of God’s wrath. The king even persisted in his rebellion after Egypt had been ruined. (SR 118.1) MC VC

Moses and Aaron related to Pharaoh the nature and effect of each plague which should follow his refusal to let Israel go. Every time he saw these plagues come exactly as he was told they would come; yet he would not yield. First, he would only grant them permission to sacrifice to God in the land of Egypt; then, after Egypt had suffered by God’s wrath, he granted that the men alone should go. After Egypt had been nearly destroyed by the plague of the locusts, then he granted that their children and their wives might go also, but would not let their cattle go. Moses then told the king that the angel of God would slay their first-born. (SR 118.2) MC VC

Every plague had come a little closer and more severe, and this was to be more dreadful than any before it. But the proud king was exceedingly angry, and humbled not himself. And when the Egyptians saw the great preparations being made among the Israelites for that dreadful night, they ridiculed the token of blood upon their doorposts. (SR 118.3) MC VC