金剛般若經贊述 2.53

2.53

就初中有二，初、彰經德大，次、持誦福圓，此初也。「不可思議」者，非情思之可議；「不可稱量」者，非語言而可稱說；「為大乘者說」者，謂定性大乘；「為最上乘者說」者，謂不定性大乘，謂亦有二乘性故，謂此妙法最極難量，小乘意樂下劣，不能於此經而發趣，故云為發大乘者說也。

Within the first, there are two parts: first, revealing the greatness of the sūtra's virtue; second, the perfection of the merit of upholding and reciting it. This is the first. 'Inconceivable' means it cannot be deliberated by mundane thought. 'Incalculable' means it cannot be expressed or stated in words. 'Spoken for those of the Great Vehicle' means those with determinate Great Vehicle nature. 'Spoken for those of the Supreme Vehicle' means those with indeterminate Great Vehicle nature, who also possess the nature of the two vehicles. This sublime Dharma is exceedingly difficult to measure; the aspirations of the Small Vehicle are inferior, and they cannot set out toward this sūtra. Therefore it says it is spoken for those who set out on the Great Vehicle.