מדרש אויף נחום 1:11

She weeps bitterly in the night (Lamentations 1:2) - Let our teacher the priests teach us - is it permitted for them to immerse for their terumah offering on the Ninth of Av? Rabbi Chanina the deputy High Priest said: It would suffice for the House of our God to forgo one immersion. (Beraisa Taanit 13a) Needless to say, we must recall the destruction of the Temple.

She said: Nahum, your comforts have been given to you! Yesterday you said "From you emerged one who plots evil against the Lord, counselor of wickedness" (Nahum 1:11). And now you say "Never again shall scoundrel pass through you." Whom shall we believe? "How can you console me? Your answers remain treachery."

"from you": This refers to counsel, viz. (Nachum 1:11) "From you has gone the counselor."