מוֹאָ֤ב ׀ סִ֬יר רַחְצִ֗י עַל־אֱ֭דוֹם אַשְׁלִ֣יךְ נַעֲלִ֑י עָ֝לַ֗י פְּלֶ֣שֶׁת הִתְרֹעָֽעִֽי׃
Moab is my washpot; Upon Edom do I cast my shoe; Philistia, cry aloud because of me!
Rashi on Psalms
Moab is my washbasin I will use them as a copper pot prepared for washing therein.
Rashi on Psalms
join me Join my kingdom to be subordinate to me, for Gath, and also Gaza, which David vanquished, are of the land of the Philistines.