To avoid a quarrel is a setback for sin, for it is a hot temper that kindles quarrels.
A sinner sows trouble between friends and spreads scandal where before there was peace.
A fire is kept hot by stoking and a quarrel by persistence.
A man’s rage is in proportion to his strength, and his anger in proportion to his wealth.
A hasty argument kindles a fire, and a hasty quarrel leads to bloodshed.

Blow on a spark to make it glow, or spit on it to put it out.
Both results come from the one mouth.

–Ecclesiasticus 28:8-12