NET
34 So then, do not worry about tomorrow, for tomorrow will worry about itself. Today has enough trouble of its own.
Darby
34 Be not careful therefore for the morrow, for the morrow shall be careful about itself. Sufficient to the day [is] its own evil.
KJV
34 “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.”