BG 18.31

O son of Pṛthā, that understanding which cannot distinguish between religion and irreligion, between action that should be done and action that should not be done, is in the mode of passion.

18.31. The intellect, by means of which one decides incorrectly the righteous and the unrighteous ones and what is a proper action and also an improper onethat intellect is of the Rajas (Strand), O son of Prtha !

18.31 The intellect which does not understand what is right and what is wrong, and what should be done and what not, is under the sway of Passion.

18.31 See Comment under 18.32

18.31 That Buddhi by which one does not know exactly the twofold Dharma previously mentioned and its opposite, and what ought to be done and what ought not to be done by those intent on them in accordance with place, time and conditions - that Buddhi is Rajasika.

18.31 O Partha, sa, that; buddhih, intellect; is rajasi, born of rajas; yaya, with which; prajanati, one understands; ayathavat, wrongly, not truly, not by discerning it from all points of view; dharmam, virtue, as prescribed by the scritpures; and adharmam, vice, what is prohibited by them; [By dharma and adharma are implied the seen and the unseen results of actions as revealed by the scriptures; karya and akarya respectively refer to the actual doing of what ought to be done and the not doing of what ought not to be done.] ca eva, as also; karyam, what ought to be done; and akaryam, what ought not to be done-those very 'duty' and 'what is not duty' as stated earlier.

18.31 The Buddhi which gives an erroneous knowledge of Dharma and Adharma (its opposite) and also of what ought to be done and what ought not to be done, O Arjuna, is Rajasika.

18.31 O Partha, that intellect is born of rajas with which one wrongly understands virtue and vice as also what ought to be done and ought not to be done.