What the Bible says about Temporariness of Physical Life
(From Forerunner Commentary)
This sudden cutting short of the rich man's career expresses, not only the folly of assuming one knows what the future holds, but also of staking one's whole life on what may disappear at any moment. God calls this man a fool because he reasoned that his life of secure and abundant earthly enjoyment was the pinnacle of human success and happiness. A fool is a person without good sense or mental sanity, one who lacks a commonsense perception of the reality of physical and spiritual things (Luke 11:39-41; Jeremiah 17:11). The true reality is that everything depends on what God wills, not what man plans (James 4:13-17).
Martin G. Collins
Parable of the Rich Fool