As an adamant harder than flint

Behold, I have made thy face strong against their faces, and thy forehead strong against their foreheads.EZE.3:9 As an adamant harder than flint have I made thy forehead: fear them not, neither be dismayed at their looks, though they be a rebellious house.EZE.3:10 Moreover he said unto me, Son of man, all my words that I shall speak unto thee receive in thine heart, and hear with thine ears.EZE.3:11 And go, get thee to them of the captivity, unto the children of thy people, and speak unto them, and tell them, Thus saith the Lord GOD; whether they will hear, or whether they will forbear.EZE.3:12 Then the spirit took me up, and I heard behind me a voice of a great rushing, saying, Blessed be the glory of the LORD from his place.