Je was op zoek naar: adamantem (Latijn - Engels)

et aspera in adamantem,
a hidden gem

ut adamantem et ut silicem dedi faciem tuam ne timeas eos neque metuas a facie eorum quia domus exasperans es
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.

et cor suum posuerunt adamantem ne audirent legem et verba quae misit dominus exercituum in spiritu suo per manum prophetarum priorum et facta est indignatio magna a domino exercituu
yea, they made their hearts as an adamant stone, lest they should hear the law, and the words which the lord of hosts hath sent in his spirit by the former prophets: therefore came a great wrath from the lord of hosts.