Pharaoh, the king of Egypt, refused to listen to God. Instead he hardened his heart. Then God made Pharaoh’s heart even harder. So God had to bring judgment on the entire country.
Exodus 3: 18b-20
…and you shall come, you and the elders of Israel, to the king of Egypt; and you shall say to him, ‘The Lord God of the Hebrews has met with us; and now, please, let us go three days’ journey into the wilderness, that we may sacrifice to the Lord our God.’ But I am sure that the king of Egypt will not let you go, no, not even by a mighty hand. So I will stretch out My hand and strike Egypt with all My wonders which I will do in its midst; and after that he will let you go.
PRAY THAT THE RULER OF YOUR NATION WILL HUMBLE HIMSELF BEFORE THE MIGHTY GOD OF ISRAEL