Bhagavad Gita 12.10

अभ्यासेऽप्यसमर्थोऽसि मत्कर्मपरमो भव |
मद्रथमपि कर्माणि कुर्वन्सिद्धिमवाप्स्यसि

Translation

If you cannot practice remembering Me with devotion, then just try to work for Me. Thus performing devotional service to Me, you shall achieve the stage of perfection.