Berean Standard Bible (BSB)
Do not boast about tomorrow, for you do not know what a day may bring.
World English Bible (WEB)
Don’t boast about tomorrow; for you don’t know what a day may bring forth.
Strong's King James
Boast{H1984}{(H8691)} not thyself of to morrow{H4279}; for thou knowest{H3045}{(H8799)} not what a day{H3117} may bring forth{H3205}{(H8799)}.
The F.O.G *
Don't boast about tomorrow, Yes, you don't know what a day may bring.
The F.O.G Message *
Young's Literal Translation
Boast not thyself of to-morrow, For thou knowest not what a day bringeth forth.