Sirach 28:10-12

Revised Standard Version

¹⁰ In proportion to the fuel for the fire, so will be the burning,
    and in proportion to the obstinacy of strife will be the burning;^[a]
in proportion to the strength of the man will be his anger,
    and in proportion to his wealth he will heighten his wrath.
¹¹ A hasty quarrel kindles fire,
    and urgent strife sheds blood.

¹² If you blow on a spark, it will glow;
    if you spit on it, it will be put out;
    and both come out of your mouth.