Genesis 41:25 (KJV)

And the lean and the ill favoured kine did eat up the first seven fat kine:

And when they had eaten them up, it could not be known that they had eaten them; but they were still ill favoured, as at the beginning. So I awoke.

And I saw in my dream, and, behold, seven ears came up in one stalk, full and good:

And, behold, seven ears, withered, thin, and blasted with the east wind, sprung up after them:

And the thin ears devoured the seven good ears: and I told this unto the magicians; but there was none that could declare it to me.

The seven good kine are seven years; and the seven good ears are seven years: the dream is one.

And the seven thin and ill favoured kine that came up after them are seven years; and the seven empty ears blasted with the east wind shall be seven years of famine.

This is the thing which I have spoken unto Pharaoh: What God is about to do he sheweth unto Pharaoh.

Behold, there come seven years of great plenty throughout all the land of Egypt:

And there shall arise after them seven years of famine; and all the plenty shall be forgotten in the land of Egypt; and the famine shall consume the land;