15 But when the king saw that things were now better, he again did just as the Lord had said and stubbornly refused to listen to Moses and Aaron.
16 The Lord said to Moses, “Command Aaron to strike the ground with his walking stick, and everywhere in Egypt the dust will turn into gnats.”
17 They obeyed, and when Aaron struck the ground with the stick, gnats started swarming on people and animals. In fact, every speck of dust in Egypt turned into a gnat.
18 When the magicians tried to use their secret powers to do this, they failed, and gnats stayed on people and animals.
19 The magicians told the king, “God has done this.”But, as the Lord had said, the king was too stubborn to listen.
20 The Lord said to Moses:Early tomorrow morning, while the king is on his way to the river, go and say to him, “The Lord commands you to let his people go, so they can worship him.
21 If you don't, he will send swarms of flies to attack you, your officials, and every citizen of your country. Houses will be full of flies, and the ground will crawl with them.