not names for different parts of God, but one name for God because three persons exist in God as one entity. They cannot be separate from one another. Each person is understood as having the identical essence or nature, not merely similar natures. According to the Eleventh Council of Toledo (675) "For, when we say: He who is the Father is not the Son, we refer to the distinction of persons; but when we say: the Father is that which the Son is, the Son that which the Father is, and the Holy Spirit that which the Father is and the Son is, this clearly refers to the nature or substance". The Fourth Lateran Council (1215) adds: "Therefore in God there is only a Trinity, not a quaternity, since each of the three persons is that reality — that is to say substance, essence or divine nature-which alone is the principle of all things, besides which no other principle can be found. This reality neither begets nor is begotten nor proceeds; the Father begets, the Son is begotten and the holy Spirit proceeds. Thus there is a distinction of persons but a unity of nature. Although therefore the Father is one person, the Son another person and the holy Spirit another person, they are not different realities, but rather that which is the Father is the Son and the holy Spirit, altogether the same; thus according to the orthodox and catholic faith they are believed to be consubstantial. " Clarification of the relationships among the three Trinitarian Persons (divine persons, different from the sense of a "human self") advanced in the Magisterial statement promulgated by the Council of Florence (1431–1449), though its formulation precedes the Council: "These three persons are one God and not three gods, for the three are one substance, one essence, one nature, one Godhead, one infinity, one eternity, and everything (in them) is one where there is no opposition of relationship []". Robert Magliola explains that most theologians have taken in the "Thomist" sense, namely, the "opposition of relationship" [in English we would say "oppositional relationship"] is one of contrariety rather than contradiction. The only "functions" that are applied to the Father, Son, and Holy Spirit respectively in Scripture are the following: "Paternity" to the Father, "Filiation" (Sonship) to the Son, and "Passive Spiration" or that which is "breathed out", to the Holy Spirit. Magliola goes