2 Chronicles 5:13

It 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;

Ver. 13. Were even as one, to make one sound.] Signifying that unanimity and good agreement that must be amongst ministers, yea, all Christians.