Strong's Concordance and Lexicon in Hebrews and Greek

Ezekiel 3:5 - to a people of a strange speech and of an hard language For thou art not sent but to the house of Israel

Ezekiel 3:6 - people Not to many of a strange speech and of an hard language thee to them they would have hearkened whose words Surely had I sent thee to them they would have hearkened

Proverbs 9:18 - But he knoweth not that the dead are in the depths of hell are there and that her guests

Isaiah 33:19 - a people a fierce Thou shalt not see a people of a deeper speech than thou canst perceive of a stammering tongue that thou canst not understand