John Trapp on Psalms 81:5

Verſ. 5. This he ordained in Joſeph] Put for all Iſrael, as Pſal. 80.1. though the Chaldee underſtandeth it of Joſeph in perſon, and the next words of his going through the Land of Aegypt to gather Corn in the ſeven plentiful years, and that at his firſt coming into Aegypt, he underſtood not their Language.

Where I heard a Language] Idolatrous Language, ſay ſome, contrary to the Language of Canaan: this God knew not, Iſa. 19.18. that is, liked not; Or, rather a ſtrange forrein Language, which is not ſmall grievance, Jer. 5.15. Ezek. 2.6. 1 Corinth. 14.11. to thoſe eſpecially, who underſtand no otherwiſe than by blows, as Beaſts do men.Sordidiſſimo miniſterio.