Sacrifice and Right Action
Chapter 3's teaching that action offered without a private claim on its outcome — yajna — is what keeps disciplined action from binding, argued first as cosmic charter and then through Krishna's own example.
BG 3.9
The world is bound by action, unless performed for the sake of sacrifice; for that sake, free from attachment, O son of Kuntî, perform thou action.
BG 3.14
From food creatures become; from rain is the production of food; rain proceedeth from sacrifice; sacrifice ariseth out of action.
BG 3.20
Janaka and others indeed attained to perfection by action: then having an eye to the welfare of the world also, thou shouldst perform action.
BG 3.22
There is nothing in the three worlds, O Pârtha, that should be done by Me, nor anything unattained that might be attained; yet I mingle in action.
BG 3.30
Surrendering all actions to Me, with thy thoughts resting on the supreme Self, from hope and egoism freed, and of mental fever cured, engage in battle.