Psalms 58
Far as I can see is about the philistines
א לַמְנַצֵּחַ אַל-תַּשְׁחֵת, לְדָוִד מִכְתָּם.1 For the Leader; Al-tashheth. [A Psalm] of David; Michtam.
ב הַאֻמְנָם--אֵלֶם צֶדֶק, תְּדַבֵּרוּן; מֵישָׁרִים תִּשְׁפְּטוּ, בְּנֵי אָדָם.2 Do ye indeed speak as a righteous company? Do ye...