1 Chronicles 23:29-31

23:29 They also took care of the bread that is displayed, the flour for offerings, the unleavened wafers, the round cakes, the mixing, and all the measuring. 23:30 They also stood in a designated place every morning and offered thanks and praise to the Lord. They also did this in the evening 23:31 and whenever burnt sacrifices were offered to the Lord on the Sabbath and at new moon festivals and assemblies. A designated number were to serve before the Lord regularly in accordance with regulations.