Then the Lord said to Moses, “Say to Aaron, ‘Take your staff and stretch out your hand over the waters of Egypt, over their rivers, over their streams, and over their pools, and over all their reservoirs of water, that they may become blood; and there will be blood throughout all the land of Egypt, both in vessels of wood and in vessels of stone.’”

“Their nobles have sent their servants for water;
They have come to the cisterns and found no water.
They have returned with their vessels empty;
They have been put to shame and humiliated,
And they cover their heads.