Bhagavad Gita
                                              Translation by His Divine Grace
A C  Bhaktivedanta Swami Prabhupad 
Chapter Three  KARMA
YOGA           Verses   9 to
12
| yajnarthat
  karmano 'nyatra  | Work done as a sacrifice for Visnu has to
  be performed, otherwise work binds one to this material world. Therefore, O
  son of Kunti, perform your prescribed duties for His satisfaction, and in
  that way you will always remain unattached and free from bondage. | 
| saha-yajnah
  prajah srstva  | In the beginning of creation, the Lord of
  all creatures sent forth generations of men and demigods, along with sacrifices
  for Visnu, and blessed them by saying, "Be thou happy by this yajna
  [sacrifice] because its performance will bestow upon you all desirable
  things." | 
| devan
  bhavayatanena  | The demigods, being pleased by sacrifices,
  will also please you; thus nourishing one another, there will reign general
  prosperity for all. | 
| istan bhogan
  hi vo deva  | In charge of the various necessities of
  life, the demigods, being satisfied by the performance of yajna [sacrifice],
  supply all necessities to man. But he who enjoys these gifts, without
  offering them to the demigods in return, is certainly a thief |