The Torah portion begins by saying, “You shall appoint judges and officers for yourself.” The Judges rule how to behave and the officers enforce it and ensure people act as they have been told. R’ Moshe Feinstein says that the word, “lecha, for yourself” is very important. We must each act as proper judges for ourselves, determining what is right and wrong, and also as policemen, ensuring that we follow that which we know is right. Don’t worry about telling others what to do – tell yourself what you should do and then do it!
Rabbi Ephraim Lever