The hammer of the Lord will break stony hearts. People who dwell in unbelief or whose minds are not moldable are some of those the Lord is working on today.
The Word of truth is the fabric of a functional society. The Word of God has gone out, to break the stony hearts, and to unify His people. "For the word of God is alive and active. Sharper than any double-edged sword, it penetrates even to dividing soul and spirit, joints and marrow; it judges the thoughts and attitudes of the heart"