'Smoke' in the Bible

And the men of Ai look behind them, and see, and lo, the smoke of the city hath gone up unto the heavens, and there hath not been in them power to flee hither and thither -- and the people who are fleeing to the wilderness have turned against the pursuer, --

and Joshua and all Israel have seen that the ambush hath captured the city, and that the smoke of the city hath gone up, and they turn back and smite the men of Ai;