Proverbs 18:6 

6.   A fool’s lips enter into contention, and his mouth calleth for strokes.

7.  A fool’s mouth is his destruction, and his lips are the snare of his soul.

Note: these verses are from the King James Holy Bible 

6.7.  A Fool gets into constant fights. His mouth is his undoing! His words endanger him.

Note: This verse is from the Kids Application Bible