Listen to this article

Now listen, you who say, “Today or tomorrow we will go to this or that city, spend a year there, carry on business and make money.”
Why, you do not even know what will happen tomorrow. What is your life? You are a mist that appears for a little while and then vanishes.
Instead, you ought to say, “If it is the Lord’s will, we will live and do this or that.”
As it is, you boast and brag. All such boasting is evil.
Anyone, then, who knows the good he ought to do and doesn’t do it, sins.

GNT … What do you know about tomorrow? How can you be sure about your life? It’s nothing more than mist that appears for only a little while before it disappears’

In 100 years (or less) we will all be dead to this world, and everything we know will be gone. The only thing that will remain is our Faith in Jesus and the only security or riches that remain with us are the number of souls we witnessed to while here on earth and the only regret we will have been those we failed to witness to.