many are the princes thereof] The state of the commonwealth is oftentimes changed, as 1 Kings 16. but by a man of understanding] It may be read. So because of men of understanding and knowledge, the princes life shall be prolonged. Which is a great benefit to the land, for many troubles come, where the government is often altered. by a man of understanding and knowledge the state thereof shall be prolonged] Or, by men of understanding and wisdom shall they likewise be prolonged.