金光明經文句記 4.86

4.86

二、就此經示。既談法性，性則不改。此乃常德實相者，中實之相。此品云「求於如來真實法身」，新本云「法身是常是實」，實是我德，自在何窮？既具常我，豈虧樂淨？四德彌彰，無量空義也。

Second, he shows this with reference to the present sūtra. Since it speaks of the Dharma-nature, the nature does not change. This is the virtue of permanence; the real mark is the mark of the reality of the middle. This chapter says 'seeking the Tathāgata's true Dharma-body,' and the new translation says 'the Dharma-body is permanent and real'; 'real' is the virtue of the self, whose unhindered mastery has no end. Since it is endowed with permanence and self, how could bliss and purity be lacking? The four virtues become all the more manifest; this is the meaning of immeasurable emptiness.