"And God said, Let there be lights in the firmament of the heaven to divide the day from the night; and let them be for signs, and for seasons, and for days, and years: and let them be for lights in the firmament of the heaven to give light upon the earth: and it was so." Paganism is worship of the creation, not the Creator. I would say as mankind intellectually evolved, the seed for seeking a higher meaning and to see the Divine. was planted first. We are born with the knowledge and thirst for God, we came to that naturally. Once the Law was given, it explains that none of Creation is sacred unto itself, and should not be worshipped, as it came from God, and did not make itself, there is but one God. Nor are we supposed to trash his Creation, but we are not to make idols of it.