Acts 16:21

And teach customs - Εθη , Religious opinions, and religious rites.

Which are not lawful for us to receive - The Romans were very jealous of their national worship. Servius, on the following lines of Virgil, has given us correct information on this point; and has confirmed what several other writers have advanced: -

Rex Evandrus ait: Non haec solemnia nobis

Vana superstitio, veterumque ignara deorum, Imposuit .

Aen. viii. v. 185, etc.