Here are 9 Bible verses about idiots from the Old and New Testaments of the Holy Bible (King James Version), sorted from most to least relevant.
Proverbs 26:3 KJV
A whip for the horse, a bridle for the ass, and a rod for the fool’s back.
Matthew 5:22 KJV
But I say unto you, That whosoever is angry with his brother without a cause shall be in danger of the judgment: and whosoever shall say to his brother, Raca, shall be in danger of the council: but whosoever shall say, Thou fool, shall be in danger of hell fire.
Proverbs 12:1 KJV
Whoso loveth instruction loveth knowledge: but he that hateth reproof is brutish.
Matthew 5:21-22 KJV
Ye have heard that it was said by them of old time, Thou shalt not kill; and whosoever shall kill shall be in danger of the judgment: But I say unto you, That whosoever is angry with his brother without a cause shall be in danger of the judgment: and whosoever shall say to his brother, Raca, shall be in danger of the council: but whosoever shall say, Thou fool, shall be in danger of hell fire.
Matthew 12:35-37 KJV
A good man out of the good treasure of the heart bringeth forth good things: and an evil man out of the evil treasure bringeth forth evil things. But I say unto you, That every idle word that men shall speak, they shall give account thereof in the day of judgment. For by thy words thou shalt be justified, and by thy words thou shalt be condemned.
Titus 3:10 KJV
A man that is an heretick after the first and second admonition reject;
James 1:25 KJV
But whoso looketh into the perfect law of liberty, and continueth therein, he being not a forgetful hearer, but a doer of the work, this man shall be blessed in his deed.
Romans 14:10-12 KJV
But why dost thou judge thy brother? or why dost thou set at nought thy brother? for we shall all stand before the judgment seat of Christ. For it is written, As I live, saith the Lord, every knee shall bow to me, and every tongue shall confess to God. So then every one of us shall give account of himself to God.
Exodus 20:16 KJV
Thou shalt not bear false witness against thy neighbour.