Psalm 79
Jerusalem in ruins, bodies unburied, blood poured out like water. The prayer asks for wrath on the invading nations and for God not to hold "past sins" against His people. It mixes confession and protest. It asks God to act "for the sake of Your name," appealing to His character, not to Israel's merit.
"Help us, O God of our salvation, for the glory of Your name; deliver us and atone for our sins, for the sake of Your name." (Psalm 79:9)