יָשׁ֣וּבוּ לָ֭עֶרֶב יֶהֱמ֥וּ כַכָּ֗לֶב וִיס֥וֹבְבוּ עִֽיר׃
אַלע אָװנט קומען זײ װידער, זײ װױען װי אַ הונט, און דרײען זיך אום אין שטאָט.
Rashi
They return in the evening, etc... Behold, they spew forth with their mouth The interpretation of these two verses connects one to the other. They return in the evening What they did by day does not suffice them; in the evening they repeat their evil: guarding me that I do not escape and leave the city Now what did they do by day? Behold, all day they spew forth with their mouth, to spy on me to Saul.