A gentleman first rectifies himself before rectifying others. How can he rectify others if he does not rectify himself?

From: Confucius' "Zilu Pian".

Original text: If his body is upright, he will not do what he is told; if his body is not upright, he will not do what he is told. Confucius said: "If you just straighten your body, what's the point of being in politics? If you can't straighten your body, how can you straighten your people?"

Translation: Confucius said: "If you behave well, even if you don't issue orders, the people will obey them." "My own behavior is not correct, and no one obeys my orders." Confucius said: "If you can really correct your own behavior, what is the difficulty of being a politician? How can you make others correct if you can't correct your own behavior?" ?