Take therefore no thought for the morrow: for the morrow shall take thought for the things of itself. Sufficient unto the day is the evil thereof.
Matthew 6:34
King James Version (public domain)
Traditionally attributed to Matthew · 1st century AD · One of the twelve apostles of Jesus; tax collector by trade
Context
32(For after all these things do the Gentiles seek:) for your heavenly Father knoweth that ye have need of all these things.
33But seek ye first the kingdom of God, and his righteousness; and all these things shall be added unto you.
34Take therefore no thought for the morrow: for the morrow shall take thought for the things of itself. Sufficient unto the day is the evil thereof.