39:1.16

5. Directors of Assignment. A body of 144 supreme seraphim is elected from time to time by the angels serving on the evolutionary and on the architectural spheres of creature habitation. This is the highest angelic council on any sphere, and it co-ordinates the self-directed phases of seraphic service and assignment. These angels preside over all seraphic assemblies pertaining to the line of duty or the call to worship.