Those who fail to have faith that “the God…exists…” cannot “please the God” or “come to Him” (Heb.11:6), i.e. the one true God. That includes not only atheists & agnostics but also others who (as far as gods are concerned) only affirm the existence of false demonic &/or man made gods, such as Baal, Ra, Moloch, Zeus, etc. Those “god worshippers” also did not have faith in the existence of “the God”, so could neither come to Him or be well-pleasing to Him (Heb.11:6).
And there you will serve man-made gods of wood and stone, which cannot see or hear or eat or smell.
Their idols are silver and gold, made by the hands of men.
Who fashions a god or casts an idol which profits him nothing?
Isaiah 44:10-20 Who has formed a god, or molten a graven image that is profitable for nothing…
1 Corinthians 8:4
So about eating food sacrificed to idols: We know that an idol is nothing at all in the world, and that there is no God but one.
1 Corinthians 12:2 You know that you were Gentiles, carried away to these dumb idols,
The rest of mankind who were not killed by these plagues still did not repent of the works of their hands. They did not stop worshiping demons and idols of gold, silver, bronze, stone, and wood, which cannot see or hear or walk.