||But you must realize today that God your Lord is the One who shall cross before you. He is [like] a consuming fire, and He will subjugate [these nations] before you, rapidly driving them out and annihilating them, as God promised you.
Veyadata hayom ki Adonay Eloheycha hu-ha'over lefaneycha esh ochlah hu yashmidem vehu yachni'em lefaneycha vehorashtam veha'avadetam maher ka'asher diber Adonay lach.
(Chizzkuni). Or, 'God your Lord will send a consuming fire across before you' (HaKethav VeHaKabbalah).