Midrash su Salmi 136:15

They forced the Israelites to pasture their flocks, and so he sent the murrain against them, as it is said: Behold, the hand of the Lord is upon thy cattle (Exod. 9:3). They compelled the Israelites to keep the heated things warm, and so He afflicted them with boils. They plotted to have them stoned to death and so He sent hail upon them. They planned to make the Israelites their gardeners, and so He brought against them the locusts, which consumed their trees, and ate all the grass and fruit in the land. They conspired to imprison them, and so He brought darkness upon them. They planned to kill the Israelites, and so He smote all their firstborn. They wanted to drown them in water, and so He overthrew Pharaoh and his host in the Red Sea (Ps. 136:15).

Whatever the Egyptians devised against Israel, [the Holy One] brought against them. Those < Egyptians > devised for them to draw their water. What is written (in Ps. 78:44)? HE TURNED THEIR NILES INTO BLOOD SO THAT THEIR STREAMS WERE UNDRINKABLE. Those < Egyptians > devised for them to be laden as traveling traders.²²Gk.: pragmateutes. He sent frogs upon them and covered them with resin. Those < Egyptians > devised for them to work on the land. The Holy One made the land swarm with gnats. Those <Egyptians> devised that they should bear their children as a paidagogos.²³The Greek word designates a slave who was assigned to a child as an attendant and guardian. He sent lions, wolves, and bears among them. <If> an Egyptian had ten children, when he told Israel to bring them to the market place, the lion came and took one, the wolf one, the bear one, the leopard one, and the snake one. Then he came <back> to the Egyptian alone. The Egyptian said: Where are my children? Israel said to him: Sit down and I myself will render you an accounting: The lion took one <etc.>; and so <he continued> on, until he had given him an accounting. Now they (the Egyptians) devised that they would tend their livestock, but he sent out the plague among them, as stated (in Exod. 9:6): THEN ALL THE EGYPTIAN LIVESTOCK DIED. They intended that they would be bath attendants {bathe them}. He brought the boils upon them. They intended to stone them with stones. The Holy One brought the hail upon them, as stated (in Exod. 9:22): THAT THERE MAY BE HAIL <IN ALL THE LAND OF EGYPT >…. They intended that they would be their vine dressers. The Holy One brought the locusts, who ate their trees, as stated (in Exod. 10:15): AND THEY ATE ALL THE GRASS OF THE EARTH…. They intended to imprison them in prison. The Holy One brought darkness upon them, as stated (in Exod. 10:23): THEY COULD NOT SEE ONE ANOTHER…. They intended to kill them. The Holy One killed their first-born, as stated (in Exod. 12:29): THAT THE LORD SMOTE ALL THE FIRST-BORN. They intended to drown them in water. The Holy One also drowned them in water, as stated (in Ps. 136:15): BUT OVERTHREW PHARAOH AND HIS HOST IN THE REED SEA….

(Lev. 22:27:) WHEN A BULL OR A SHEEP OR A GOAT IS BORN…. This text is related (to Ps. 36:7 [6]): YOUR RIGHTEOUSNESS IS LIKE THE MIGHTY MOUNTAINS; YOUR JUDGMENTS ARE LIKE THE GREAT DEEP.³⁴Tanh., Lev. 8:5; also above, Gen. 2:8; below, Numb. 1:1. < YOUR RIGHTEOUSNESS IS LIKE THE MIGHTY MOUNTAINS. > These are the righteous ones, in that they have been compared with mountains, where it is stated (in Micah 6:2): HEAR, O MOUNTAINS, THE LAWSUIT OF THE LORD…. (Ps. 36:7 [6], cont.:) AND YOUR JUDGMENTS ARE LIKE THE GREAT DEEP. These are the wicked, since it is stated (in Ps. 136:15): BUT OVERTHREW PHARAOH AND HIS HOST IN THE REED SEA.