Arjuna said (A king with) the rod of chastisement sways all subjects and protects them. The rod of chastisement is awake when all else is under sleep. For this, the wise have designated the rod of chastisement as Righteousness itself.
अर्जुन उवाच दण्डः शास्ति प्रजाः सर्वा दण्ड एवाभिरक्षति। दण्डः सुप्तेषु जागर्ति दण्डं धर्म विदुर्बुधाः॥