Proverbs 26:3

A whip for the horse, a bridle for the donkey, and a rod for the back of fools.

Psalm 32:9

Be not like a horse or a mule, without understanding, which must be curbed with bit and bridle, or it will not stay near you.

Proverbs 10:13

On the lips of him who has understanding, wisdom is found, but a rod is for the back of him who lacks sense.

Judges 8:5-7

So he said to the men of Succoth, "Please give loaves of bread to the people who follow me, for they are exhausted, and I am pursuing after Zebah and Zalmunna, the kings of Midian."

Proverbs 17:10

A rebuke goes deeper into a man of understanding than a hundred blows into a fool.

Proverbs 19:25

Strike a scoffer, and the simple will learn prudence; reprove a man of understanding, and he will gain knowledge.

Proverbs 19:29

Condemnation is ready for scoffers, and beating for the backs of fools.

Proverbs 27:22

Crush a fool in a mortar with a pestle along with crushed grain, yet his folly will not depart from him.

1 Corinthians 4:21

What do you wish? Shall I come to you with a rod, or with love in a spirit of gentleness?

2 Corinthians 10:6

being ready to punish every disobedience, when your obedience is complete.

2 Corinthians 13:2

I warned those who sinned before and all the others, and I warn them now while absent, as I did when present on my second visit, that if I come again I will not spare them--

Treasury of Scripture Knowledge

Summary

Proverbs 26:3

A whip for the horse, a bridle for the ass, and a rod for the fool's back.

According to our notions, we should rather say, a bridle for the horse, and a whip for the ass; but it should be considered, that the eastern asses are not only much more beautiful, but better goers that ours; and being active and well broken, they need only a bridle to guide them; whereas their horses being scarce, and often caught wild, and badly broken, are much less manageable, and need the correction of the whip

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