Chapter 5 · The Yoga of Renunciation · Krishna said
Bhagavad Gita 5.16 — Knowledge like the sun
ज्ञानेन तु तदज्ञानं येषां नाशितमात्मनः। तेषामादित्यवज्ज्ञानं प्रकाशयति तत्परम् ॥
jñānena tu tadajñānaṃ yeṣāṃ nāśitamātmanaḥ | teṣāmādityavajjñānaṃ prakāśayati tatparam ||
Meaning
But for those whose ignorance is destroyed by knowledge of the Self, that knowledge shines like the sun and reveals the Supreme.