Śākyamuni Buddha is equipped with the three virtues of a lord, master and parent. As a lord, He protects the people; as a master He guides the people; and as a parent, He loves the people. It is only He who is perfectly equipped with these three virtues.
Ichidai Goji Keizu, Genealogical Chart of the Buddha’s Lifetime Teachings in Five Periods, Writings of Nichiren Shōnin, Doctrine 3, Page 244