Flame of fireis the chosen symbol of the holiness of God ( Exodus 3:2 ; Revelation 2:18 ), as indicating "the intense, all-consuming operation of his holiness in relation to sin." These dictionary topics are fromM.G. Easton M.A., D.D., Illustrated Bible Dictionary, Third Edition,published by Thomas Nelson, 1897. Public Domain, copy freely.Bibliography InformationEaston, Matthew George. "Entry for Flame of fire". "Easton's Bible Dictionary". .