Later on, Moses and Aaron went to Pharaoh. They said, “The Lord is the God of Israel. He says, ‘Let my people go. Then they will be able to hold a feast to honor me in the desert.’ ”
Then the Lord spoke to Moses. He said, “Get up early in the morning. Go to Pharaoh and say to him, ‘The Lord, the God of the Hebrews, says, “Let my people go. Then they will be able to worship me.
If you refuse, my powerful hand will bring a terrible plague on you. I will strike your livestock in the fields. I will strike your horses, donkeys, camels, cattle, sheep and goats.
They were burned by the blazing heat. So they spoke evil things against the name of God, who controlled these plagues. But they refused to turn away from their sins. They did not give glory to God.