KJV - Boast not thyself of to morrow; for thou knowest not what a day may bring forth.

ASV - Boast not thyself of tomorrow; For thou knowest not what a day may bring forth.

BBE - Do not make a noise about tomorrow, for you are not certain what a day's outcome may be.

WEB - Don't boast about tomorrow; For you don't know what a day may bring forth.

YLT - Boast not thyself of to-morrow, For thou knowest not what a day bringeth forth.

Notes