Therefore do not be anxious, saying, What shall we eat? or What shall we drink? or What shall we wear? For the Gentiles seek after all these things, and your heavenly Father knows that you need them all. But seek first the kingdom of God and his righteousness, and all these things will be added to you. Therefore do not be anxious about tomorrow, for tomorrow will be anxious for itself. Sufficient for the day is its own trouble.
Matthew 6:31-34 (ESV)