כִּֽי־שִׂפְתֵ֤י כֹהֵן֙ יִשְׁמְרוּ־דַ֔עַת וְתוֹרָ֖ה יְבַקְשׁ֣וּ מִפִּ֑יהוּ כִּ֛י מַלְאַ֥ךְ יְהוָֽה־צְבָא֖וֹת הֽוּא׃
Sebab bibir seorang imam haruslah memelihara pengetahuan, dan dari mulutnyalah orang mencari Taurat, karena ia adalah utusan Yang Mahakekal semesta alam.
Chagigah
But Rabbi Meir- how did he learn Torah from the mouth of Acher? But didn't Rabba the son of the son of Chana say, "Rabbi Yochanan said, 'What is [the meaning of] the verse, 'For my lips, a priest shall guard; knowledge and instruction they shall ask from his mouth, for he is an angel of Hashem of Legions (Malachi 2:7)'? If the teacher is like an angel of Hashem of Legions, they should ask instruction from his mouth; And if not, they should not ask instruction from his mouth.'"