बुद्धियुक्तो जहातीह उभे सुकृतदुष्कृते। तस्माद्योगाय युज्यस्व योगः कर्मसु कौशलम् ॥

buddhi-yukto jahātīha ubhe sukṛita-duṣhkṛite tasmād yogāya yujyasva yogaḥ karmasu kauśhalam

United to the Pure Reason one abandoneth here both good and evil deeds; therefore cleave thou to yoga; yoga is skill in action.

In plain words: Krishna says a person joined with true wisdom goes beyond both good and bad deeds and their effects. So hold on to yoga, because yoga means doing actions skillfully.