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.
TSK
TSK · Genesis 41:30
مراجع Treasury of Scripture Knowledge في NET.
Then the seven years of famine began, just as Joseph had predicted. There was famine in all the other lands, but throughout the land of Egypt there was food.
But there was no food in all the land because the famine was very severe; the land of Egypt and the land of Canaan wasted away because of the famine.
Elijah Visits a Widow in Sidonian Territory Elijah the Tishbite, from Tishbe in Gilead, said to Ahab,“As certainly as the LORD God of Israel lives(whom I serve), there will be no dew or rain in the years ahead unless I give the command.”
He called down a famine upon the earth; he cut off all the food supply.
Whoever pronounces a blessing in the earth will do so in the name of the faithful God; whoever makes an oath in the earth will do so in the name of the faithful God. For past problems will be forgotten; I will no longer think about them.
Elijah was a human being like us, and he prayed earnestly that it would not rain and there was no rain on the land for three years and six months!