How does the biblical concept of revelation lead to the unity in Trinity? “If revelation is to be taken seriously as God’s presence, if there is to be a valid belief in revelation, then in no sense can Christ and the Spirit be subordinate hypotases. In the predicate and object of the concept [of] revelation we must again have, and to no less a degree, the subject itself. Revelation and revealing must be equal to the revealer.” (I/1, 353) The unity of God is not in spite of the Trinity, but because of the revelatory nature of the Trinity. God is one because God self-communicates himself to us in Jesus Christ through the Holy Spirit. In order that it is truly God who reveals himself, that it is truly God who reveals himself, that it is truly God who reveals himself, there is unity in the Trinity. That is, “[o]nly the substantial equality of Christ and the Spirit with the Father is compatible with monotheism.” (353) Revelatory monotheism, to be more precise.