These two extremes "small" and "great" represent all people. Alternate translation: "you will treat all people alike" (See: [[rc://en/ta/man/translate/figs-merism]])
The word "face" is a metonym for the whole person. "You will not" is a command. "Do not be afraid of anyone" (See: [[rc://en/ta/man/translate/figs-synecdoche]])