P306:4, 28:1.1 These high angels are of record on the superuniverse headquarters, and despite service in the local creations, technically they are residents of these superuniverse capitals inasmuch as they are not native to the local universes. Tertiaphim are children of the Infinite Spirit and are personalized on Paradise in groups of one thousand. These supernal beings of divine originality and near-supreme versatility are the gift of the Infinite Spirit to the Creator Sons of God.
P306:5, 28:1.2 When a Michael Son is detached from the parental regime of Paradise and is made ready to go forth on the universe adventure of space, the Infinite Spirit is delivered of a group of one thousand of these companion spirits. And these majestic tertiaphim accompany this Creator Son when he embarks upon the adventure of universe organization.
P306:6, 28:1.3 Throughout the early times of universe building, these one thousand tertiaphim are the only personal staff of a Creator Son. They acquire a mighty experience as Son assistants during these stirring ages of universe assembling and other astronomical manipulations. They serve by the side of the Creator Son until the day of the personalization of the Bright and Morning Star, the first-born of a local universe. Thereupon the formal resignations of the tertiaphim are tendered and accepted. And with the appearance of the initial orders of native angelic life, they retire from active service in the local universe and become the liaison ministers between the Creator Son of former attachment and the Ancients of Days of the superuniverse concerned.