"'The days of the years' is a Hebrew phrase which speaks of quality of life because life is made up of days...individual specific days. In those 64,000 days, Abraham, the friend of God, walked with God. The Christian life is not called the Christian leap, the Christian jump, or the Christian bounce. It's called the Christian walk because it takes place one step, one day at a time... What I do today will affect how I arrive at the end of my life."
- Jon Courson (Courson's Appl. Commentary, vol. 1)
Genesis 25:7-8 (KJV) And these are the days of the years of Abraham's life which he lived, an hundred threescore and fifteen years. Then Abraham gave up the ghost, and died in a good old age, an old man, and full of years; and was gathered to his people.