ישוב [יָשִׁ֣יב] הָ֭רַע לְשֹׁרְרָ֑י בַּ֝אֲמִתְּךָ֗ הַצְמִיתֵֽם׃
Er wird meinen Lästerern das Böse vergelten; in deiner Treue vernichte sie.
Rashi on Psalms
to those who lie in wait for me Heb. לשררי, those who eye me, an expression of (Num. 24:17): “I see him (אשורנו), but not near.”
Rashi on Psalms
with Your truth Since You are truthful, and You said that You would wreak vengeance upon talebearers and those who pursue to kill, therefore, cut them off.