Vedic God is Atman. Atman is Advaita.+

Vedic God is Atman. Atman is Advaita. 

In Vedas, God has been described as:~

Yajur Veda – chapter- 32:~ God is Supreme Spirit has no ‘Pratima’ (idol) or material shape. He cannot be seen directly by anyone. He pervades all beings and all directions. 

Idolatry does not find any support from the Vedas.

Rig Veda: ~ The Atman (Soul or Spirit) is the cause; Atman is the support of all that exists in this universe. May ye never turn away from the Atman, the  Self’. May ye never accept another God in place of the Atman nor worship other than the Atman?" (10:48, 5)

Rig Veda: ~ 'Prajnanam Brahma'- Consciousness is the ultimate reality or Brahman or God in truth.

Do not accept any other God other than the Soul. The Soul is God in truth,  Nothing is real but the Soul, which is present in the form of consciousness. Nothing matters but realize  God in truth. God in truth is everywhere and in everything. Let these words be inscribed in your subconscious.

God in truth is hidden by the illusory universe. God in truth alone is real and eternal and all else is an illusion.:

Brahman is merely a word to indicate the ultimate truth or God in truth.  The ultimate truth itself is God in truth. 

The Vedas as a body of scripture contains many contradictions and they are fragmentary in nature. For Hindus, scriptures like the Bhagavad-Gita, Ramayana, Mahabharata, and Puranas are more attractive and appealing than the Vedas. And also, the Gods and Goddesses they worship differ considerably from the Vedic ones. The collection of hymns called Vedas are written in praise of certain deities by poets over several centuries does not seem to have much significance for the Hindus

Yajur Veda says:~

Translation 1

They enter darkness, those who worship natural things (for example air, water, sun, moon, animals, fire, stone, etc).

They sink deeper in darkness those who worship sambhuti. (Sambhuti means created things, for example, table, chair, idol, etc.) (Yajurveda 40:9)

Translation 2

"Deep into the shade of blinding gloom fall asambhuti's worshippers. They sink to darkness deeper yet who on sambhuti are intent." (Yajurveda Samhita by Ralph T. H. Griffith pg. 538)

Translation 3

"They are enveloped in darkness, in other words, are steeped in ignorance and sunk in the greatest depths of misery who worship the uncreated, eternal prakrti -- the material cause of the world -- in place of the All-pervading God, But those who worship visible things born of the prakrti, such as the earth, trees, bodies (human and the like) in place of God are enveloped in still greater darkness, in other words, they are extremely foolish, fall into an awful hell of pain and sorrow, and suffer terribly for a long time." (Yajur Veda 40:9.)

So, Yajur Veda indicates that:~

They sink deeper in darkness those who worship sambhuti. (Sambhuti means created things, for example, table, chair, idol, etc (Yajurveda 40:9)

Those who worship visible things born of the prakrti, such as the earth, trees, bodies (human and the like) in place of God are enveloped in still greater darkness, in other words, they are extremely foolish, fall into an awful hell of pain and sorrow and suffer terribly for a long time." (Yajur Veda 40:9.)

Then why worship and glorify the non-~Vedic Gods in place of Vedic God when Veda bars such activities and it also warns people who indulge in such activities are enveloped in still greater darkness, in other words, they are extremely foolish, fall into an awful hell of pain and sorrow, and suffer terribly for a long time.:~Santthosh Kumaar