Then the LORD said to Moses, “Tell Aaron, ‘Stretch out your staff and strike the dust of the earth, that it may turn into swarms of gnats throughout the land of Egypt.’”
Jewish Publication Society of America Version (JPS1917) - Exodus 8:16 >(8-12) And the LORD said unto Moses: 'Say unto Aaron: Stretch out thy rod, and smite the dust of the earth, that it may become gnats throughout all the land of Egypt.'