Both "mouth" and "tongue" refer to what a person says. AT: "Whoever is careful in what he says" (See: [[rc://en/ta/man/translate/figs-doublet]] and [[rc://en/ta/man/translate/figs-metonymy]])
The word "name" is a metonym for what people would call him. AT: "a mocker is what you should call him" (See: [[rc://en/ta/man/translate/figs-metonymy]])