God is number one in my life.
God is believed to be the Supreme Being 
I am a new believer. Can you tell me more?
The first recordings that survive of monotheistic conceptions of God, are from the Hellenistic period.
How long ago was that?
Hellenistic period
The Hellenistic period covers the period of Mediterranean history between the death of Alexander the Great in 323 BC and the emergence of the Roman Empire as signified by the Battle of Actium in 31 BC and the subsequent conquest of Ptolemaic Egypt the following year. The Ancient Greek word Hellas (Ἑλλάς, Ellás) is the original word for Greece, from which the word "Hellenistic" was derived.
During the Hellenistic period Greek cultural influence and power reached the peak of its geographical expansion, being dominant in the Mediterranean
being, the monistic , that which we cannot understand; and so on.
The first recordings that survive of monotheistic conceptions of God, borne out of henotheism and (mostly in Eastern religions) monism, are from the Hellenistic period. Of the many objects and entities that religions and other belief systems across the ages have labeled as divine, the one criterion they share is their acknowledgment as divine by a group or groups of human beings.
Hellenistic philosophy and religion.
Hellenistic philosophy and religion Aristotelianism.
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