Bible Dictionary
STRANGE, FIRE
“Strange fire” refers to the unauthorized fire offered by Nadab and Abihu before the Lord. Their profane approach to the holy service brought divine judgment and death.
Biblical Usage
Nadab and Abihu offered strange fire before the Lord and were killed by fire from before Him. The account presents sacred fire as a symbol of holiness and uninterrupted worship, which they approached in a profane spirit.