Psalms 81:5

This he ordained in Joseph [for] a testimony, when he went out through the land of Egypt: [where] I heard a language [that] I understood not.

Ver. 5. This he ordained in Joseph] Put for all Israel, as Psalms 80:1, though the Chaldee understandeth it of Joseph in person, and the next words of his going through the land of Egypt to gather corn in the seven plentiful years, and that at his first coming into Egypt he understood not their language.

When I heard a language] Idolatrous language, say some, contrary to the language of Canaan: this God knew not, that is, liked not, Isaiah 19:18; or, rather a strange foreign language, which is no small grievance, Jer 5:15 Ezekiel 2:6 1 Corinthians 14:11, to those especially who understand no otherwise than by blows, as beasts do men.