Sirach 8:16-18

New Revised Standard Version Catholic Edition

¹⁶ Do not pick a fight with the quick-tempered,
    and do not journey with them through lonely country,
because bloodshed means nothing to them,
    and where no help is at hand, they will strike you down.
¹⁷ Do not consult with fools,
    for they cannot keep a secret.
¹⁸ In the presence of strangers do nothing that is to be kept secret,
    for you do not know what they will divulge.^[a]