I think he's trying to say we may live longer, but die of SOMETHING anyway.
NIV Hebrews 9:27-28
27. Just as man is destined to die once, and after that to face judgment,
28. so Christ was sacrificed once to take away the sins of many people; and he will appear a second time, not to bear sin, but to bring salvation to those who are waiting for him.
Oh alright. But you can't take away the fact that science and technology has enabled the life expectancy of people to rise. People today live more than twice as long, on average, as those in the Middle Ages. People are probably much less religious now than the ones used to be in the Middle Ages. Isn't that something to ponder about?