By a given default, the Ancients believed in the Gods, but also in the "Singular God". Aristotle calls this "One God" the "Akiniton Kinoun" which means the "Eternally moving, ummovable" and is considered the theoretical core of creation, or the "One God". This "One God" is a transcendental notion and not an actual "entity" in the way we would recognize an entity with feelings, preferrences, emotions, or even responses. It's a hypothetical and scientific observation, an essence that pervades the whole of creation.

The word "God" was also used to describe the unified consciousness field of the cosmos itself. Zeus was ascribed archetypal with this power. As Zeus was considered the God of the Aether, he was commonly also associated with this God, same as Amun in Egypt. Gods are beings which are either of equal power, or in awareness of this "One God" and do manifest the will of creation onward.

They are necessary and without them, no existence would be, as the theoretical "One God" is just force and nothing else if there are no Gods as consciousness beings to tap into this concept and bring it forth.

Simultaneously, the Ancients also knew that from this field, numerous beings worthy of equal or even higher reverence have been created, since it is not of point to just focus solely on this principle but there are also other equally or more important principles and beings, which we call the Gods.

The universal mind, the aether, or the Akiniton Kinoun, does not have jealousies, resentments, or anything of the sort; it's the source of the laws of existence. It will not smite you for believing in "Another God" and it will not send you to "Hell" if you do not believe in "it". It requires no "belief" on your behalf. The universal mind is not an individual, it's the sum of all forms of existence. This was also called the "Pan" or "The Everything" and in other cases, it was called "God", or "Nature" or "Creation".

Monotheism also existed insofar a person could focus on one God, who for the most part, was either Zeus or the equal head of a pantheon. Yet simultaneously they understood there are other exceptionally or in some areas of life, more important and approachable Gods.

The Ancients did believe simultaneously in "Monotheism" and "Polytheism" as these two things do not contradict one another.

This question is a dichotomy that was created by the Yehuborim, who wanted to impose only their Yehuborim tribal god to everyone else. This was a low level gimmick that destroyed a lot of complex, deep and profound thought that would lead humanity to greater enlightenment. For their own purposes, they censored everyone else and imposed their nonsense. Yehuborim faith by definition is inferior and rather limited and seeks to benefit only them and nobody else.

To make this happen, they had to make people succumb under their very limited interpretation and accept nobody else. They used "Religion" and "God" as a means for war, not for exploration and respect for the divine.

Their need to remove all the Gods was to remove the symbols of power, natural knowledge, scientific and occult knowledge from the Gentiles, but also to cut them off from the species that seek to actively help us. Imposing "One God and Nobody Else" was necessary for them. Yehuborim follow strictly their "Own God" because their crimes have angered all other Gods and beings, who can visit them with catastrophic justice for doing this. Therefore they are forbidden from following the "Gods of the Goyim". Like a thief avoids the universe and the policing factors in it, likewise the Yehuborim act and they therefore pretend they believe in "One God".

Yehuborim don't really follow "Monotheism" either; they ascribe hundreds of names, angels and epithets to their "God", so they are hypocritical about this too. So they mimic the Ancient system but they also simultaneously pretend. Because "Monotheism" is a useless lie, that is also promoted on the Gentiles via Christianity and Islam. These are programs of slavery and not religions.

Such question did not exist in the Ancient World. You could focus on one God, cite the Universal Mind as "God" and believe in the Gods or approach them for help and guidance, depending on their office, at the same time.

Ancient Philosophers use God depending on the context; when they refer to the highest consciousness, they call it merely "God", or Zeus. When they speak about the Gods, they speak about the Gods and when they speak of other entities tasked with anything, they speak about that. These do not contradict each other, but complete each other.

God, the Universal mind, does love us all here. The Gods are also loving us a lot for wanting to explore both the universal mind and them. Gods help us become Gods and also simultaneously to advance in the eternal and universal mind, because this is the ultimatum of the process of creation. These all complete each other, and complete us too in this process of expanding our minds and souls.

-High Priest Zevios Metathronos