ישעיהו כט:יג פירוש: רש״י ואבן עזרא

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.

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.

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.