It is also true that some of the gods of the Romans were borrowed from the Greeks, but their life was left behind.

They merely repeated by rote the Greek mythology, having no power to invent one for themselves.

But the Greek religion they never received.
For instead of its fair humanities, the Roman gods were only servants of the state,--a higher kind of consuls, tribunes, and lictors.

The real Olympus of Rome was the Senate Chamber on the Capitoline Hill.

Judaism also was in reality an ethnic religion, though it aimed at catholicity and expected it, and made proselytes.