Chapter 12: Sloka 10

12.10

abhyāse ’py asamartho ’si
mat-karma-paramo bhava
mad-artham api karmāṇi
kurvan siddhim avāpsyasi

abhyāse—in the practice of; api—even; asamarthaḥ—unable; asi—you are; mat-karma—My work; paramaḥ—supreme; bhava—you become; mat-artham—for My sake; api—even though; karmāṇi—what; kurvan—performing; siddhim—perfection; avāpsyasi—achieve.

If you cannot practice the regulations of bhakti-yoga, then just try to work for Me, because by working for Me you will come to the perfect stage.