仁王般若經疏 2.138

2.138

大王下，答問內第三段，定經名字勸持。文有三：初總列經名勸人受持；復有無量下，第二顯經功能；從汝應下，第三結勸受持。第一列名內云此經名仁王問波若者，此經有二名，若從能請人為名，名為仁王問經；二從功能立目，名護國經。道理通護一切衰惱等事，但護國為宗，故偏名護國也。第二顯經功能令人樂持。云復有無量功德者，總顯功德廣多。下別顯功能有四：初護國亦護王身；二明護舍亦護人身；三即此下，結波若是護國；四如城下，喻顯護國。城塹如戒，城高顯譬大乘。塹在城下外而復小，譬小乘。皆有防非止惡義。牆壁如定，安身之用。牆廣譬大乘，壁小譬小乘。刀劍如智慧，鉾楯如戒定。第三汝應下，結勸受持也。

From 'Great King' on is the third section within the response to the questions, determining the title of the sūtra and exhorting its upholding. The text has three parts: first, generally listing the sūtra's titles and exhorting people to uphold it; from 'further possesses immeasurable' on, second, revealing the functions of the sūtra; from 'You should' on, third, concluding by exhorting to uphold it. In the first part of listing titles, it says 'This sūtra is named The Sūtra of the Benevolent King Inquiring about Prajñā': this sūtra has two titles. If named after the person capable of requesting it, it is named The Sūtra of the Benevolent King's Inquiries; second, if established from its function, it is named The Sūtra of Protecting the State. By principle it generally protects against all decline, affliction, and the like, but since protecting the state is the principal theme, it is exclusively named 'Protecting the State'. Second, revealing the functions of the sūtra to make people delight in upholding it. Saying 'further possesses immeasurable merit' generally shows that the merits are vast and numerous. Below, it separately reveals four functions: first, protecting the state and also protecting the king's body; second, clarifying that it protects homes and also protects people's bodies; third, from 'this prajñāpāramitā' on, concludes that prajñā is the protection of the state; fourth, from 'like city walls' on, uses analogies to show the protection of the state. City walls and moats are like morality (śīla): high and prominent city walls symbolize the Great Vehicle; moats below the city walls, outside and small, symbolize the Lesser Vehicle. Both have the meaning of guarding against wrongdoing and halting evil. Partitions and stone walls are like concentration (samādhi), used for securing the body: broad partitions symbolize the Great Vehicle; small stone walls symbolize the Lesser Vehicle. Swords are like wisdom; spears and shields are like morality and concentration. Third, from 'You should' on concludes by exhorting to uphold it.