Treasury of Scripture Knowledge
Summary
His heart is as firm as a stone; yea, as hard as a piece of the nether millstone.
As hard
Bible References
As hard
Isaiah 48:4
Because I knew that you are obstinate, and your neck is an iron sinew and your brow bronze.
Jeremiah 5:3
O Jehovah, are not Your eyes on the truth? You have stricken them, but they have not grieved; You have destroyed them, but they have refused to receive correction; they have made their faces harder than rock; they have refused to return.
Zechariah 7:12
And they made their hearts adamant from hearing the Law and the Words which Jehovah of Hosts has sent through His Spirit, by the former prophets. And great wrath came from Jehovah of Hosts.