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.
Jewish Publication Society of America Version (JPS1917) - Zechariah 7:12 >Yea, they made their hearts as an adamant stone, lest they should hear the law, and the words which the LORD of hosts had sent by His spirit by the hand of the former prophets; therefore came there great wrath from the LORD of hosts.