Bhagavad Gita: Engage mental, bodily and vocal, everything -in the service of the Supreme Lord , full divine consciousness (The Most Confidential Knowledge, Text 14, Chapter 9)

Sri-bhagavan uvaca

satatam kirtayanto mam
yatantas ca drdha-vratah
namasyantas ca mam bhaktya
nitya-yukta upasate

 (The Most Confidential Knowledge, Text 14, Chapter 9)

Meaning: Always chanting My glories, endeavoring with great determination, bowing down before Me, these great souls perpetually worship Me with devotion.

Bhagavad Gita: Engage mental, bodily and vocal, everything -in the service of the Supreme Lord , full divine consciousness (The Most Confidential Knowledge, Text 14, Chapter 9)