7-9. Remember . . . the children of Edom—(Compare Ps 132:1), that is, to punish.

     8. daughter of Babylon—the people (Ps 9:13). Their destruction had been abundantly foretold (Isa 13:14; Jer 51:23). For the terribleness of that destruction, God's righteous judgment, and not the passions of the chafed Israelites, was responsible.