For the LORD your God is a consuming fire, even a jealous God.
All Commentaries on Deuteronomy 4:24 Go To Deuteronomy 4
George Leo Haydock
AD 1849
Fire. God often appeared in the midst of fire. All the land shall be devoured by the fire of his jealousy, Sophonias i. 18., and iii. 8. (Calmet)
By these expressions, we are exhorted not to do any thing which would excite the indignation of our true lover, nor ever be unfaithful to him. (Haydock)
The pagans thought that fire was the fittest symbol of the divinity. (Porphyr. de Abstin.)