1 Corinthians 4:21

What do you wish? Am I to come to you with a rod, or in a loving and gentle spirit?

2 Corinthians 10:6

And are fully prepared to punish every act of rebellion, when once your submission is complete.

2 Corinthians 13:2

I have said it, and I say it again before I come, just as if I were with you on my second visit, though for the moment absent, I say to those who have been long sinning, as well as to all others--that if I come again, I shall spare no one.

Treasury of Scripture Knowledge

Summary

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

Bible References

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

1 Corinthians 4:21
What do you wish? Am I to come to you with a rod, or in a loving and gentle spirit?
2 Corinthians 10:6
And are fully prepared to punish every act of rebellion, when once your submission is complete.
2 Corinthians 13:2
I have said it, and I say it again before I come, just as if I were with you on my second visit, though for the moment absent, I say to those who have been long sinning, as well as to all others--that if I come again, I shall spare no one.