Genesis 41:26-32

26The seven good cows are seven years, and the seven good heads of grain are seven years; it is one and the same dream.

27The seven lean, ugly cows that came up afterward are seven years, and so are the seven worthless heads of grain scorched by the east wind: They are seven years of famine. 28“It is just as I said to Pharaoh: God has shown Pharaoh what he is about to do. 29Seven years of great abundance are coming throughout the land of Egypt, 30but seven years of famine will follow them. Then all the abundance in Egypt will be forgotten, and the famine will ravage the land. 31The abundance in the land will not be remembered, because the famine that follows it will be so severe.

32The reason the dream was given to Pharaoh in two forms is that the matter has been firmly decided by God, and God will do it soon.