Chapter 3 · The Yoga of Action · Krishna said
Bhagavad Gita 3.20 — Work for the world's good
कर्मणैव हि संसिद्धिमास्थिता जनकादयः। लोकसंग्रहमेवापि सम्पश्यन्कर्तुमर्हसि ॥
karmaṇaiva hi saṃsiddhimāsthitā janakādayaḥ | lokasaṃgrahamevāpi sampaśyankartumarhasi ||
Meaning
King Janaka and others reached perfection through action alone. Keeping in mind the welfare of the world, you too should act.