2CH 7:6

6 And the Kohanim stood at their mishmerot [(watches)]; the Levi'im also with kelei shir Hashem, [(musical instruments of ]Hashem[)] which Dovid HaMelech had made to give thanks to Hashem — ki l'oham chasdo [(for His mercy endureth forever)] — whenever Dovid praised by their means; and the Kohanim sounded khatzotzrot [(trumpets)] opposite them, and kol Yisroel stood.