What is "sufficient unto the day is the evil thereof"

prov. No need to worry about the future; the present provides enough to worry about.

"Sufficient unto the day is the evil thereof" is an aphorism which appears in the Sermon on the Mount in the Gospel of Matthew — Matthew 6:34. It also appears in the sermon at the temple in the Book of Mormon- 3 Nephi 13:34. Its meaning is the philosophy that one should live in the present, without a care for tomorrow. The same words, in Hebrew, are used to express the same thought in the Rabbinic Jewish saying dyya l'tzara b'shaata , "the suffering of the (present) hour is enough for it". It is also similar to the Epicurean advice of writers such as Anacreon and Horace — quid sit futurum cras, fuge quaerere (avoid asking what the future will bring) — but Jesus's point was that God knew the worldly needs of men and so it was more important to seek his kingdom.

Alternative translations include:

• "Each day has enough trouble of its own." ( New American Standard Bible)
• "There is no need to add to the troubles each day brings" ( Today's English Version)