2 Samuel 19:1-3

Then it was reported to Joab, “Behold, the king is weeping and he mourns for Absalom.”

So the victory that day was turned into mourning for all the people, because the people heard it said that day, “The king is in mourning over his son.”

And the people entered the city surreptitiously that day, just as people who are humiliated surreptitiously flee in battle.