The 1st Noahide Law: The Prohibition of Idolatry

Since emuna and idolatry are mutually exclusive, the first Noahide Law that prohibits idolatry is actually a law that obligates emuna. Without emuna, a person is vulnerable to all types of idolatry, some in very subtle forms. In spirituality, there is no vacuum; where there's no emuna, idolatry fills the void.