Suetonius claims that emperor Augustus worshiped only old and permanent cults, i.e. cult of Ceres – he participated in the her mysteries. As he learned some secrets about the mysteries, he later settled the dispute between the participants of the rituals by removing the other judges from the tribunal.
However, during his stay in Egypt, he did not pay homage to Apis, and when his grandson Gaius was in Judea, he praised him for not visiting the temple in Jerusalem and sacrificing there.