ἄσβεστος ásbestos

Greek · Strong's G762 · used 4 times in 4 verses

Meaning

not extinguished, i.e. (by implication) perpetual

In the King James Version: not to be quenched, unquenchable

Derivation: from G1 (Α) (as a negative particle) and a derivative of G4570 (σβέννυμι);

Matthew 3:12 His winnowing fork is in His hand to clear His threshing floor and to gather His wheat into the barn; but He will burn up the chaff with unquenchable fire.”
Mark 9:43 If your hand causes you to sin, cut it off. It is better for you to enter life crippled than to have two hands and go into hell, into the unquenchable fire.
Mark 9:45 If your foot causes you to sin, cut it off. It is better for you to enter life lame than to have two feet and be thrown into hell.
Luke 3:17 His winnowing fork is in His hand to clear His threshing floor and to gather the wheat into His barn; but He will burn up the chaff with unquenchable fire.”