Sirach 34:1-7

Revised Standard Version

34 A man of no understanding has vain and false hopes,
    and dreams give wings to fools.
² As one who catches at a shadow and pursues the wind,
    so is he who gives heed to dreams.
³ The vision of dreams is this against that,
    the likeness of a face confronting a face.
⁴ From an unclean thing what will be made clean?
    And from something false what will be true?
⁵ Divinations and omens and dreams are folly,
    and like a woman in travail the mind has fancies.
⁶ Unless they are sent from the Most High as a visitation,
    do not give your mind to them.
⁷ For dreams have deceived many,
    and those who put their hope in them have failed.