Obadiah 1:11-12

11 In the day that you stood on the other side, in the day that the strangers carried away captive his forces, and foreigners entered into his gates, and cast lots on Jerusalem, even you were as one of them.

12 But you should not have looked on the day of your brother in the day that he became a stranger; neither should you have rejoiced over the children of Judah in the day of their destruction; neither should you have spoken proudly in the day of distress.