Proverbs 26:3

A whip is for a horse, a bridle for an ass, And a rod for the back of fools.

Psalm 32:9

Be ye not as a horse -- as a mule, Without understanding, With bridle and bit, its ornaments, to curb, Not to come near unto thee.

Proverbs 10:13

In the lips of the intelligent is wisdom found, And a rod is for the back of him who is lacking understanding.

Judges 8:5-7

and he saith to the men of Succoth, 'Give, I pray you, cakes of bread to the people who are at my feet, for they are wearied, and I am pursuing after Zebah and Zalmunna kings of Midian.'

Proverbs 17:10

Rebuke cometh down on the intelligent More than a hundred stripes on a fool.

Proverbs 19:25

A scorner smite, and the simple acts prudently, And give reproof to the intelligent, He understandeth knowledge.

Proverbs 19:29

Judgments have been prepared for scorners, And stripes for the back of fools!

Proverbs 27:22

If thou dost beat the foolish in a mortar, Among washed things -- with a pestle, His folly turneth not aside from off him.

1 Corinthians 4:21

what do ye wish? with a rod shall I come unto you, or in love, with a spirit also of meekness?

2 Corinthians 10:6

and being in readiness to avenge every disobedience, whenever your obedience may be fulfilled.

I have said before, and I say it before, as being present, the second time, and being absent, now, do I write to those having sinned before, and to all the rest, that if I come again, I will not spare,

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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