" These were well-recognized code words in the mystery cults, which meant the same thing there as they clearly do for Clement here: ‘babes’ were Christians not yet inducted into the higher mysteries, while the ‘mature’ had been, and thus knew teachings that other Christians did not. But Clement also indicates in the above quotes that there were also teachings that ‘babes’ were privy to that non-Christians (the ‘profane’) were not to be told. "

― Richard C. Carrier , On the Historicity of Jesus: Why We Might Have Reason for Doubt