Sirach 6:9-11

Revised Standard Version Catholic Edition

⁹ And there is a friend who changes into an enemy,
    and will disclose a quarrel to your disgrace.
¹⁰ And there is a friend who is a table companion,
    but will not stand by you in your day of trouble.
¹¹ In your prosperity he will make himself your equal,
    and be bold with your servants;