Trinity, Relationship, Unity, Identity

The terms "Trinity" and "persons" as related to the Godhead, while not found in the Scriptures, are words in harmony with Scripture, whereby we may convey to others our immediate understanding of the doctrine of Christ respecting the Being of God, as distinguished from "gods many and lords many." We therefore may speak with propriety of the Lord our God who is One Lord, as a trinity or as one Being of three persons, and still be absolutely scriptural.

The Person and Work of the Holy Spirit, R.A. Torrey

Christ taught a distinction of Persons in the Godhead which He expressed in specific terms of relationship, as Father, Son, and Holy Spirit, but that this distinction and relationship, as to its mode is inscrutable and incomprehensible, because unexplained.

Accordingly, therefore, there is that in the Father which constitutes him the Father and not the Son; there is that in the Son which constitutes Him the Son and not the Father; and there is that in the Holy Spirit which constitutes Him the Holy Spirit and not either the Father or the Son. Wherefore the Father is the Begetter, the Son is the Begotten, and the Holy Spirit is the one proceeding from the Father and the Son. Therefore, because these three persons in the Godhead are in a state of unity, there is but one Lord God Almighty and His name one.

The Father, the Son and the Holy Spirit are never identical as to Person; nor confused as to relation; nor divided in respect to the Godhead; nor opposed as to cooperation. The Son is in the Father and the Father is in the Son as to relationship. The Son is with the Father and the Father is with the Son, as to fellowship. The Father is not from the Son, but the Son is from the Father, as to authority. The Holy Spirit is from the Father and the Son proceeding, as to nature, relationship, cooperation and authority. Hence, neither Person in the Godhead either exists or works separately or independently of the others.