2 Chronicles 5:11-14

The priests of every group had gone through the ceremony to make themselves clean and acceptable to the LORD. The Levite musicians, including Asaph, Heman, Jeduthun, and their sons and relatives, were wearing robes of fine linen. They were standing on the east side of the altar, playing cymbals, small harps, and other stringed instruments. One hundred and twenty priests were with these musicians, and they were blowing trumpets. They were praising the LORD by playing music and singing: “The LORD is good, and his love never ends.” Suddenly a cloud filled the temple as the priests were leaving the holy place. The LORD's glory was in that cloud, and the light from it was so bright that the priests could not stay inside to do their work.