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.

The entire lifetime of Lamech was 777 years, and then he died.

Sarah lived 127 years.

Methuselah lived 782 years after he became the father of Lamech, and he had other sons and daughters.

Ishmael lived a total of 137 years. He breathed his last and died; then he joined his ancestors.

The seven good cows represent seven years, and the seven good heads of grain represent seven years. Both dreams have the same meaning.