Krishna- I am the Supreme spirit.

यस्मातक्षरमतीतोऽहमक्षरादपि चोत्तमः।
अतोऽस्मि लोके वेदे च प्रथितः पुरुषोत्तमः॥

yasmātakṣaramatīto'hamakṣarādapi cottamaḥ |
ato'smi loke vede ca prathitaḥ puruṣottamaḥ ||

 Since I transcend the destructible, and am higher also than the indestructible, therefore in the world and in the Veda I am proclaimed the Supreme Spirit.