Matthew 6:34 in the King James Version
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.
Context
33 But seek first God’s Kingdom and his righteousness; and all these things will be given to you as well.
34 Therefore don’t be anxious for tomorrow, for tomorrow will be anxious for itself. Each day’s own evil is sufficient.