One God in Brahma sutra & Bhagavad Gita - Comparative Religion Study - 2

Ekam eva Advitheeyam Brahma.
Neeka Nanasti kinchana.

The only one that exists is the non-dual Brahman and there is nothing else.

Ekameva adviteeyam - HE(The supreme Lord and BrahmaM) is only ONE, not dual, meaning all Chit(living - incl of all gods) and non-living) are also part of HIM. There is nothing that exists independent of HIM. In the unmanifested form, (before creation) "All beings are in Me, but I am not in them". Gita 9:4. [which proves that HEis an independent , magnificient Person including every creation, so He cannot be formless!!!!!].

Eko Devaha sarva Bhootatmama - HE, the one only, is the heart, innerself/supersoul of every soul(jiva incl of all gods). [ so I am not God, the inner I is that Supreme GOD]. By Me, in My manifested form (after creation), this entire universe is pervaded, as supersoul/BrahmaN. Gita 9:4 [This disproves that 'I am God', else would contradict the above aphorism, that 'all beings are in HIM'].

A true yogi observes Me in all beings, and also sees every being in Me. Indeed, the self-realized man sees Me everywhere. Gita : 6-29.