2 Chronicles 5:13-14

13It came even to pass, as the trumpeters and singers were as one, to make one sound to be heard in praising and thanking the Lord; and when they lifted up their voice with the trumpets and cymbals and instruments of musick, and praised the Lord, saying, For he is good; for his mercy endureth for ever: that then the house was filled with a cloud, even the house of the Lord;

14So that the priests could not stand to minister by reason of the cloud: for the glory of the Lord had filled the house of God.