Much as the Creator Sons are personalized by the Father and the Son, the Magisterial Sons are personalized by the Son and the Spirit. UB 7:6.5
Every time an original and absolute concept of being formulated by the Eternal Son unites with a new and divine ideal of loving service conceived by the Infinite Spirit, a new and original Magisterial Son is produced. UB 20:2.1
Trinity Teacher Sons are the universal educators, being dedicated to the spiritual awakening and moral guidance of the realms. UB 20:7.3
When an evolutionary world indicates that the time is ripe for a spiritual age, the Teacher Sons always volunteer for service. UB 20:9.1
Trinity Teacher Sons usually remain on their visitation planets for one thousand years. UB 20:9.3
There are more than twenty-one billion Teacher Sons in service in the grand universe. UB 20:7.2
Trinity Teacher Sons will function on Urantia after its inhabitants are delivered from the shackles of animalism and the fetters of materialism. UB 20:9.1