Chapter 15 · The Supreme Person · Krishna said
Bhagavad Gita 15.12 — All light is God's
यदादित्यगतं तेजो जगद्भासयतेऽखिलम्। यच्चन्द्रमसि यच्चाग्नौ तत्तेजो विद्धि मामकम् ॥
yadādityagataṃ tejo jagadbhāsayate'khilam | yaccandramasi yaccāgnau tattejo viddhi māmakam ||
Meaning
The light in the sun that brightens the whole world, and the light in the moon and in fire — know that light to be Mine.