TSK · Genesis 41:54

Then seven bad-looking, thin cows were coming up after them from the Nile, and they stood beside the other cows at the edge of the river.

The seven lean, bad-looking cows that came up after them represent seven years, as do the seven empty heads of grain burned with the east wind. They represent seven years of famine.

He then said,“Look, I hear that there is grain in Egypt. Go down there and buy grain for us so that we may live and not die.”

Now Joseph was the ruler of the country, the one who sold grain to all the people of the country. Joseph’s brothers came and bowed down before him with their faces to the ground.

I will provide you with food there because there will be five more years of famine. Otherwise you would become poor– you, your household, and everyone who belongs to you.”’

He called down a famine upon the earth; he cut off all the food supply.