As the Jews and the polytheists did in the Battle of Uhud, they demoralized the people and fled the battle while they were happy, and they like to be praised for doing so and so, but in reality, they did not do anything.

فَلاَ تَحْسَبَنَّهُمْ بِمَفَازَةٍ مِّنَ الْعَذَابِ وَلَهُمْ عَذَابٌ أَلِيمٌ {never think them [to be] in safety from the punishment, and for them is a painful punishment.}: Because Allah (swt) is All-Knowing of his servants, of their little things of deeds. There is a common thing that a person likes to be praised for what he does, and this encourages him to do good. But if he harbors evil and wants to be praised for what he has not done, and does not seek from his actions anything but praise and famous in society, then this matter is not approved by Islam at all.