King James Version
Understand therefore this day, that the LORD thy God is he which goeth over before thee; as a consuming fire he shall destroy them, and he shall bring them down before thy face: so shalt thou drive them out, and destroy them quickly, as the LORD hath said unto thee.New International Version
But be assured today that the LORD your God is the one who goes across ahead of you like a devouring fire. He will destroy them; he will subdue them before you. And you will drive them out and annihilate them quickly, as the LORD has promised you.Catholic Public Domain Version
Therefore, you shall know today that the Lord your God himself will pass over before you, like a devouring and consuming fire, to crush and to wipe away and to utterly ruin them before your face, quickly, just as he has spoken to you