52:7.8

From time to time throughout their dispensation, Teacher Sons continue to come to these peaceful worlds. They do not leave a world until they observe that the evolutionary plan, as it concerns that planet, is working smoothly. A Magisterial Son of judgment usually accompanies the Teacher Sons on their successive missions, while another such Son functions at the time of their departure, and these judicial actions continue from age to age throughout the duration of the mortal regime of time and space.