Today is the tomorrow we worried about yesterday. (Dale Carnegie, 20th century American writer and lecturer)
Do you remember yesterday? Perhaps it was a really difficult day, and you worried a lot about what its concerns would look like the next day. Well, today is that tomorrow. How do things look now? Did worrying yesterday make today any better? Stop worrying about tomorrow today, so tomorrow you can look back at today and be content.
Do not worry about tomorrow, for tomorrow will worry about itself. Each day has enough trouble of its own (Matthew 6:34).