Bhagavad Gita Chapter 10, Verse 21

आदित्यानामहं विष्णुर्ज्योतिषां रविरंशुमान् | मरीचिर्मरुतामस्मि नक्षत्राणामहं शशी ||

ādityānām ahaṁ viṣṇur jyotiṣāṁ ravir aṁśumān marīcir marutām asmi nakṣatrāṇām ahaṁ śaśī

Among the Adityas, I am Vishnu; among lights, I am the radiant sun; among the Maruts, I am Marichi; among stars, I am the moon.

Krishna enumerates specific manifestations in nature and celestial beings. 'Ādityānām ahaṁ viṣṇuḥ'—among the Adityas (solar deities), I am Vishnu, the preserver. 'Jyotiṣāṁ ravir aṁśumān'—among lights, I am the radiant sun. The sun is the source of all light and energy. 'Marīcir marutām asmi'—among the Maruts (wind gods), I am Marichi. 'Nakṣatrāṇām ahaṁ śaśī'—among stars, I am the moon. This verse shows Krishna manifesting as the best in each category: the preserver among solar deities, the sun among lights, Marichi among wind gods, the moon among stars. This is the pattern: Krishna doesn't say He is everything—He says He is the best, the source of excellence in each category.