American Standard Version
Boast not thyself of tomorrow; For thou knowest not what a day may bring forth.

Berean Study Bible
Do not boast about tomorrow, for you do not know what a day may bring.

Douay-Rheims Bible
Boast not for to morrow, for thou knowest not what the day to come may bring forth.

English Revised Version
Boast not thyself of tomorrow; for thou knowest not what a day may bring forth.

King James Bible
Boast not thyself of to morrow; for thou knowest not what a day may bring forth.

World English Bible
Don't boast about tomorrow; for you don't know what a day may bring forth.

Young's Literal Translation
Boast not thyself of to-morrow, For thou knowest not what a day bringeth forth.

Proverbs 27:1 Additional Translations ...