"Take therefore no thought for tomorrow, for tomorrow shall take thought for the things of
itself. Sufficient unto the day is the evil thereof." Matthew 6:34
During the Israelites' sojourn in the desert, the manna was provided in portions just sufficient for one
day, and any excess rotted away.
As for what they would eat the next day, the Israelites had been assured that there would be fresh manna
the following day. Our appropriate stress tolerance is to be concerned for just one day - twenty-four hours, at a time. If
we take on more than that we may be overburdening the system. There’s nothing wrong with putting some things aside for
a rainy day. However, we often take on worries about things that we are powerless to alter or to prepare for today. Such futile
worry is harmful.