Bhagavad-gītā 18.59
BG 18.59
Open the full passageयदहंकारमाश्रित्य न योत्स्य इति मन्यसे । मिथ्यैष व्यवसायस्ते प्रकृतिस्त्वां नियोक्ष्यति ॥५९॥
Sanskrit
yad ahaṅkāram āśritya na yotsya iti manyase mithyaiṣa vyavasāyas te prakṛtis tvāṁ niyokṣyati
Translation
If you do not act according to My direction and do not fight, then you will be falsely directed. By your nature, you will have to be engaged in warfare.