וַיֹּ֨אמֶר יְהוָ֜ה אֶל־מֹשֶׁ֗ה נְטֵ֨ה יָדְךָ֜ עַל־אֶ֤רֶץ מִצְרַ֙יִם֙ בָּֽאַרְבֶּ֔ה וְיַ֖עַל עַל־אֶ֣רֶץ מִצְרָ֑יִם וְיֹאכַל֙ אֶת־כָּל־עֵ֣שֶׂב הָאָ֔רֶץ אֵ֛ת כָּל־אֲשֶׁ֥ר הִשְׁאִ֖יר הַבָּרָֽד׃
And the LORD said unto Moses: ‘Stretch out thy hand over the land of Egypt for the locusts, that they may come up upon the land of Egypt, and eat every herb of the land, even all that the hail hath left.’
Read Jewish philosophical commentary on Exodus 10:12: and classical philosophical sources.