Original Verse:
Ecclesiastes Chapter 10 Verse 3And when the foolish man is walking in the way, he has no sense and lets everyone see that he is foolish.

Reference Verses:
Proverbs Chapter 18 Verse 6A foolish man's lips are a cause of fighting, and his mouth makes him open to blows.
Ecclesiastes Chapter 5 Verse 3As a dream comes from much business, so the voice of a foolish man comes with words in great number.
1st Peter Chapter 4 Verse 4And they are wondering that you no longer go with them in this violent wasting of life, and are saying evil things of you:
Proverbs Chapter 18 Verse 2A foolish man has no pleasure in good sense, but only to let what is in his heart come to light.
Proverbs Chapter 13 Verse 16A sharp man does everything with knowledge, but a foolish man makes clear his foolish thoughts.