ציטירנדיקער פּירוש אויף ישעיהו 32:4

This reply encompasses all Job's rebuttals to Eliphaz's previous arguments. Namely, that it [the concealment of Providence] is an imperative of the Governance of beings who have free-will, ones that understand and know, (Isaiah 32:4) in order to show whether their worship is truly perfect, for the sake of God and His love alone.

With distorted speech (בְּלַעֲגֵי שָׂפָה) Similarly, לְעָגִים and (infra 32:4), עִלְּגִים, are both expressions of distorted speech, which is not readily grasped.

of stammering tongue (נִלְעָג לָשׁוֹן). Comp. (32:4) “The tongue of the stammerers (לְשׁוֹן עִלְּגִים),” (and of obscure speech. All this is a foreign language, for they do not understand the holy tongue.)