Sirach 12:13-15

Revised Standard Version Catholic Edition

¹³ Who will pity a snake charmer bitten by a serpent,
    or any who go near wild beasts?
¹⁴ So no one will pity a man who associates with a sinner
    and becomes involved in his sins.
¹⁵ He will stay with you for a time,
    but if you falter, he will not stand by you.