2 Chronicles 5:11 in the King James Version
And it came to pass, when the priests were come out of the holy place: (for all the priests that were present were sanctified, and did not then wait by course:
Context
10 There was nothing in the ark except the two tablets which Moses put there at Horeb, when the LORD made a covenant with the children of Israel, when they came out of Egypt.
11 When the priests had come out of the holy place (for all the priests who were present had sanctified themselves, and didn’t keep their divisions;
12 also the Levites who were the singers, all of them, even Asaph, Heman, Jeduthun, and their sons and their brothers, arrayed in fine linen, with cymbals and stringed instruments and harps, stood at the east end of the altar, and with them one hundred twenty priests sounding with trumpets);