Commentaries:
Self-indulgence promotes, among other things, attitudes of fanaticism, false security, presumption, and fun-seeking. Fanaticism is unbridled obsession, and though most do not recognize it as form of self-indulgence, it is a gratification of selfish desire. The apostle Paul says that we should avoid those who are driven by lust and greed and have no self-control.
Martin G. Collins
Overcoming (Part 8): Self-Indulgence
In Luke 12:13-21, a listener in the crowd surrounding Jesus asks Him to instruct his brother to divide the inheritance due to him equitably. Jesus declines, saying that life should not be based on having many possessions. He uses this occasion to teach His disciples that a godly life is more important than material things. To explain this, He tells a parable about a rich man who builds larger and larger barns to store all his crops and goods.
Since he had everything he could possibly want or need, the rich man's focus was on living an easy life. God's response is that the man was foolish because, when he died later that night, his goods would do nothing for him. Someone else would inherit and enjoy them. A person whose life is caught up in what he owns is not rich toward God. The Parable of the Rich Fool illustrates Jesus' teaching to guard against every kind of covetousness.
Martin G. Collins
Parable of the Rich Fool
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
Other Forerunner Commentary entries containing Luke 12:20:
Matthew 13:7
Matthew 13:22
Matthew 24:36
Luke 6:24
Luke 12:13-31
Revelation 6:9