Judges 20:40

40 But when the smoke signal began rising from the city, the men of Binyamin looked behind them and saw the whole city going up to the sky in smoke.

Judges 20:40 Meaning and Commentary

Judges 20:40

But when the flame began to arise up out of the city with a
pillar of smoke
Fire being set to it by the liers in wait, who had entered it, and who made a large fire, which caused a vast pillar of flame and smoke to arise, which might be seen a great way off:

the Benjamites looked behind them;
perhaps at hearing the blowing of the trumpet, and the long sound of that:

and, behold, the flame of the city ascended up to heaven;
went upwards, and reached to a great height.

Judges 20:40 In-Context

38 The army of Isra'el and the ambushers had agreed that as a signal they would make a huge cloud of smoke rise from the city,

39 at which time the men of Isra'el would turn back. When this happened, Binyamin began to attack. They killed about thirty of Isra'el's men and said, "Clearly we're defeating them again, as in the first battle."

40 But when the smoke signal began rising from the city, the men of Binyamin looked behind them and saw the whole city going up to the sky in smoke.

41 Then, as the men of Isra'el reversed direction, those of Binyamin were overcome with terror. When they saw that disaster had come upon them,

42 they turned their backs on the men of Isra'el and made for the road to the desert. But the battle followed them, and those who came out of the city destroyed them from the rear.