Tafseer Ibn Kathir of AL MU'MIN [75]

ذَلِكُم بِمَا كُنتُمْ تَفْرَحُونَ فِي الْأَرْضِ بِغَيْرِ الْحَقِّ وَبِمَا كُنتُمْ تَمْرَحُونَ

[The angels will say], "That was because you used to exult upon the earth without right and you used to behave insolently.