Sarah lived 127 years; these were the years of the life of Sarah.
1. And Sarah was an hundred and seven and twenty years old Literally, “The lives of Sarah were a hundred years, and twenty years, and seven years.” It is remarkable that Moses, who relates the death of Sarah in a single word, uses so many in describing her burial: but we shall soon see that the latter record is not superfluous.
We have here, 1. Sarah's age, Gen 23:1. Almost forty years before, she had called herself old, Gen 18:12. Old people will die never the sooner, but may die the better, for reckoning themselves old. 2. Her death, Gen 23:2. The longest liver must die at last. Abraham and Sarah had lived comfortably together many years; but death parts those whom nothing else could part.
Commenting on Genesis 23:1-2
And Sarah was an hundred and seven and twenty years old,.... This following immediately upon the account of the offering up of Isaac, led many of the Jewish writers to conclude, that Isaac was when thirty seven years of age, as he must be when Sarah his mother was one hundred and twenty seven, for he was born when she was ninety years of age...