Judges 20:38
King James Version
“Now there was an appointed sign between the men of Israel and the liers in wait, that they should make a great flame with smoke rise up out of the city.”
Context
35And the LORD smote Benjamin before Israel: and the children of Israel destroyed of the Benjamites that day twenty and five thousand and an hundred men: all these drew the sword.
36So the children of Benjamin saw that they were smitten: for the men of Israel gave place to the Benjamites, because they trusted unto the liers in wait which they had set beside Gibeah.
37And the liers in wait hasted, and rushed upon Gibeah; and the liers in wait drew along, and smote all the city with the edge of the sword.
38Now there was an appointed sign between the men of Israel and the liers in wait, that they should make a great flame with smoke rise up out of the city.
39And when the men of Israel retired in the battle, Benjamin began to smite kill of the men of Israel about thirty persons: for they said, Surely they are smitten down before us, as the first battle.
40But when the flame began to arise up out of the city with a pillar of smoke, the Benjamites looked behind them, and, behold, the flame of the city ascended up to heaven.
41And when the men of Israel turned again, the men of Benjamin were amazed: for they saw that evil was come upon them.