1. Denying, disregarding, or rebelling against God
The fool says in his heart “There is no God” (Psalm 14:1).
2. Slandering, lying, deceiving
He who conceals his hatred has lying lips, and whoever spreads slander is a fool (Proverbs 10:18).
A fool is quick-tempered, but a wise person stays calm when insulted (Proverbs 12:16).
4. Acts Impetuously and Without Regard for Consequences
Wise people think before they act; fools don’t and even brag about it! (Proverbs 13:16).
A wise man fears the Lord and shuns evil, but a fool is hotheaded and reckless (Proverbs 14:16).
5. Talks endlessly, brags, spouts off frequently
A fool finds no pleasure in understanding but delights in airing his own opinions (Proverbs 18:2).
Wise men store up knowledge, but the mouth of a fool invites ruin (Proverbs 10:14).
The mouths of fools are their ruin; their lips get them into trouble (Proverbs 18:7 NLT).
6. Refuses Advice, Accountability and/or Discipline
A fool spurns his father’s discipline, but whoever heeds correction shows prudence (Proverbs 15:5).
A rebuke impresses a man of discernment more than a hundred lashes a fool (Proverbs 17:10).
7. Handles Money Recklessly
Of what use is money in the hand of a fool, since he has no desire to get wisdom? (Proverbs 17:16).
In the house of the wise are stores of choice food and oil, but a foolish man devours all he has (Proverbs 21:20).
8. Quarrels frequently, picks fights, is contentious
Fools get into constant quarrels; they are asking for a beating (Proverbs 18:6 NLT).
A fool gives full vent to his anger, but a wise man keeps himself under control (Proverbs 29:11).
9. Lazy, Lacks Focus and Ambition
Foolish people refuse to work and almost starve (Ecclesiastes 4:5).
A wise person thinks much about death, while the fool thinks only about having a good time now (Ecclesiastes 7:4 NLT).
Fools are so exhausted by a little work that they have no strength for even the simplest tasks (Ecclesiastes 10:15 NLT).
10. Never Learns from Past Experience
As a dog returns to his vomit, so a fool repeats his folly (Proverbs 26:11).
You cannot separate fools from their foolishness, even though you grind them like grain with mortar and pestle (Proverbs 27:22 NLT).
Principle #2 – Don’t give them honor or luxury.
It is not fitting for a fool to live in luxury – how much worse for a slave to rule over princes! (Proverbs 19:10).
Like snow in summer or rain in harvest, honor is not fitting for a fool (Proverbs 26:1).
Principle #3 – Don’t argue with foolish people.
Don’t have anything to do with foolish and stupid arguments, because you know they produce quarrels. And the Lord’s servant must not quarrel; instead, he must be kind to everyone, able to teach, not resentful (2 Tim. 2:23-24).
Principle #4 – Protect yourself from the resentment and anger caused by foolish people.
A stone is heavy and sand is weighty, but the resentment caused by a fool is heavier than both (Proverbs 27:3 NLT).
Stay away from a foolish man, for you will not find knowledge on his lips (Proverbs 14:7).