Concept of God in Hinduism

[shibli]

UPANISHADS:
The Upanishads are considered sacred scriptures by the Hindus.
The following verses from the Upanishads refer to the Concept of God:
i.   "Ekam evadvitiyam"
"He is One only without a second."
        [Chandogya Upanishad 6:2:1]1

ii.   "Na casya kascij janita na cadhipah."
"Of Him there are neither parents nor lord."
         [Svetasvatara Upanishad 6:9]2

iii.   "Na tasya pratima asti"
"There is no likeness of Him."
        [Svetasvatara Upanishad 4:19]3

iv.   The following verses from the Upanishad allude to the inability of man to imagine God in a particular form:
"Na samdrse tisthati rupam asya, na caksusa pasyati kas canainam."
"His form is not to be seen; no one sees Him with the eye."
        [Svetasvatara Upanishad 4:20]4