Psalms 136:7

Day. When Jerusalem was taken, or when it shall be re-established. (Haydock) --- The Idumeans incited the Babylonians to destroy it entirely, and even cut in pieces such as had escaped, Abdias v. 11., and Jeremias xii. 6. --- But Nabuchodonosor punished them five years afterwards, and Hircanus forced them to receive circumcision. (Josephus, [Antiquities?] x. 11., and xiii. 18.) (Calmet) --- Isaias (xxi. 11.) denounced their ruin, as the psalmist does here. (Worthington) --- St. Chrysostom thinks that the latter expresses the vindictive sentiments of the Jews: but he rather desires that God's cause should be maintained in the manner in which He should judge best. The illusions of our own imagination and vanity are most dangerous and domestic enemies, as the Edomites sprung from the same stock as Israel. (Berthier)