Genesis 41:17-21

So Pharaoh told Joseph his dream. “In my dream,” he said, “I was standing on the bank of the Nile River, and I saw seven fat, healthy cows come up out of the river and begin grazing in the marsh grass. But then I saw seven sick-looking cows, scrawny and thin, come up after them. I’ve never seen such sorry-looking animals in all the land of Egypt. These thin, scrawny cows ate the seven fat cows. But afterward you wouldn’t have known it, for they were still as thin and scrawny as before! Then I woke up.