Do not worry about your life, what you will eat or what you will drink, or about your body, what you will wear. Is not life more than food and the body more than clothing? Look at the birds of the air; they neither sow nor reap nor gather into barns, and yet your heavenly Father feeds them. Are you not of more value than they? And can any of you by worrying add a single hour to your span of life? …But strive first for the kingdom of God and his righteousness (read: aim for the mark, obey these commands), and all these things will be given to you as well.
Matthew 6:25-33; Luke 12:22-31
Only someone like God could command you to do something that is so healthy. Telling us not to worry is like grabbing the bag of potato chips out of our hand and giving us an avocado instead.
I remember the days when I had a lot to be very worried about. Self-employed people do not get regular paychecks. Weeks could go by with nothing in the mail but bills. Oh yes, and the letters from landlords giving us a month or a week, or even 3days to move because they wanted the house back for lots of reasons, never because we didn't pay our rent. It was almost a miracle but somehow the Lord always provided rent money. One month a check, just enough, was found in our post office box addressed completely wrong. How did we even get it? Nevertheless, the temptation was great to still worry how we could pay our bills month to month.
In those days the thought of taking this command seriously felt like being asked to jump off a tower. The idea of trusting God to catch me was a little thrilling and very scary. I've heard it called taking the leap of faith, but never before realized the psycho-physical reality of this leap.
Worry warts die because they put their faith in the devil with their negative thoughts. He wants to keep them as far from trusting God as he can, same old trick as in the Garden of Eden. He never gives up because he usually wins. Aspiring immortals, on the other hand, learn how to fly!