וַיֹּ֣אמֶר אֲדֹנָ֗י יַ֚עַן כִּ֤י נִגַּשׁ֙ הָעָ֣ם הַזֶּ֔ה בְּפִ֤יו וּבִשְׂפָתָיו֙ כִּבְּד֔וּנִי וְלִבּ֖וֹ רִחַ֣ק מִמֶּ֑נִּי וַתְּהִ֤י יִרְאָתָם֙ אֹתִ֔י מִצְוַ֥ת אֲנָשִׁ֖ים מְלֻמָּדָֽה׃
Por isso o SENHOR disse: Pois que este povo se aproxima de mim, e com a sua boca e com os seus lábios me honra, mas tem afastado para longe de mim o seu coração, e o seu temor para comigo consiste em mandamentos de homens, aprendidos de cor;
Rashi on Isaiah
Because this people has come near Jonathan renders: Because this people has aggrandized itself. I.e., they have come near to raise themselves up to the heavens. They show themselves as though honoring Me with mouth and lip, but their heart they have drawn far away from Me.
Ibn Ezra on Isaiah
נגש He vexeth himself.19A. V., Draw near. Our editions have נִגַּשׂ; I. E. read נִגַּשׂ, which seems to be right according to the Masora. See Kimchi ad locum. Comp. והנגשים the taskmasters (Exod. 5:13). It is Niph.—They will afflict themselves in vain with fasting.
Rashi on Isaiah
and their fear of Me has become not wholehearted, but by the command of the people who teach them, they show themselves as humbled before Him in order to entice Him with your mouth.