Then one of them said, "Flee for your lives! Don't look back or stop anywhere on the plain. Escape to the hills, or you'll be swept away!"

Later on, a famine swept through the land. This famine was different from the previous famine that had occurred earlier, during Abraham's lifetime. So Isaac went to Abimelech, king of the Philistines, at Gerar.

Suddenly seven thin ears of grain that had been scorched by an east wind sprouted up right after them

All of a sudden, seven thin, withered ears of grain, scorched by the east wind, sprouted up after them.

The seven gaunt cows that arose after the healthy cows are seven years, as are the seven gaunt ears scorched by the east wind. There will be seven years of famine.