Let the day's own trouble be sufficient for the day. That is excellent advice. Every day will have its cares and riches, but let them take care of themselves. Don't look to the past or future in terms of these weeds. Deal with them only today.
Yesterday is gone.
Tomorrow is a new day. To him be honor and eternal dominion. As for the rich in this world, charge them not to be haughty, nor to set their hopes on uncertain riches but on God who richly furnishes us with everything to enjoy. For where your treasure is, there will your heart be also. The eye is the lamp of the body.