Matthew 3:11
Douay-Rheims
I indeed baptize you in the water unto penance, but he that shall come after me, is mightier than I, whose shoes I am not worthy to bear; he shall baptize you in the Holy Ghost and fire.
Remigius of Auxerre
The unquenchable fire is the punishment of eternal damnation; either because it never totally destroys or consumes those it has once seized on, but torments them eternally; or to distinguish it from purgatorial fire which is kindled for a time and again extinguished.
Source details
A.D. 908 · as excerpted in the Catena Aurea on Matthew 3:11-12
Imported from an open dataset — not yet checked against the printed edition.