Bg 10.22

vedānāṁ sāma-vedo ’smi
devānām asmi vāsavaḥ
indriyāṇāṁ manaś cāsmi
bhūtānām asmi cetanā
Synonyms: 
vedānām — of all the Vedas; sāma-vedaḥ — the Sāma Veda; asmi — I am; devānām — of all the demigods; asmi — I am; vāsavaḥ — the heavenly king; indriyāṇām — of all the senses; manaḥ — the mind; ca — also; asmi — I am; bhūtānām — of all living entities; asmi — I am; cetanā — the living force.
Translation: 
Of the Vedas I am the Sāma Veda; of the demigods I am Indra, the king of heaven; of the senses I am the mind; and in living beings I am the living force [consciousness].
Purport: 

The difference between matter and spirit is that matter has no consciousness like the living entity; therefore this consciousness is supreme and eternal. Consciousness cannot be produced by a combination of matter.