Sirach 34:28-30

New Revised Standard Version, Anglicised

²⁸ When one builds and another tears down,
    what do they gain but hard work?
²⁹ When one prays and another curses,
    to whose voice will the Lord listen?
³⁰ If one washes after touching a corpse, and touches it again,
    what has been gained by washing?