Bible Dictionary
Coal
Coal in the Bible generally refers to charcoal, burning embers, or glowing stones rather than mineral coal. It is used literally as fuel and figuratively for lightning, judgment, or overcoming an enemy with kindness.
Biblical Usage
“Coals of fire” may represent lightning proceeding from God. Coals of juniper are associated with the power of a false tongue, while heaping coals of fire on an enemy’s head symbolizes overcoming evil with kindness.
Scripture References