Proverbs 27:1-3

Young's Literal Translation

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

² Let another praise thee, and not thine own mouth, A stranger, and not thine own lips.

³ A stone [is] heavy, and the sand [is] heavy, And the anger of a fool Is heavier than they both.