The Sovereign LORD says, “I will remove from them their heart of stone and give them a heart of flesh.” Ezekiel 11:19
While watching a television documentary, I learned that heart rhythm problems in some cases can be caused by dead heart cells. Heart cells can die from internal as well as external causes. The dead cells do not conduct electrical impulses along the correct, predetermined path.
Likewise, the spiritual heart can be impaired. If we allow it, over time emotional injuries and personal offenses can harden our spiritual heart. The callous remarks we sometimes make to others can hurt them and cause them to harden their hearts as well. A hardened heart is spiritually impaired and doesn’t work as it was designed to. Jesus implied that a hardened heart impedes faith, discernment, and understanding. As far as I know, dead cells in a physical heart cannot be revived. But this is not true for our spiritual heart. God’s grace creates in us a clean, new, and perfect heart when we recognize our need and call on the Lord.