The doctrine of the Trinity was one of the teachings that influenced and transformed my
theological thought to a greater degree in the course. Although I had always believed the truth of
the doctrine that God is triune in that broad sense, learning about the details of the Trinitarian
doctrine has encouraged me to go past shallow knowing and into the understanding of what the
doctrine actually means. Millard Erickson discussion of the Trinity as the Trinity of Three in
Oneness assumed a theologically robust construct that affirmed both the unity of the divine
substance and the differentiation of persons (Father, Son and Holy Spirit). 1 This unity and
distinction rectified my otherwise tendency to be modalistic where I perceived the three persons
of the Trinity as being only different roles played by one person. Erickson focused on
perichoresis, or mutual indwelling of the three persons, and found the depth of the relationship of
God, which became the basis of the perception of the divine love, mission, and communion.
In several practical ways, this doctrinal insight has started closing the gap between
theology and discipleship in my life. Trinitarian theology has changed my perception of
Christian community. The loving relation and mutual love in the Trinity provides a pattern of
relating people with one another through love, unity and self-giving. This makes an
ecclesiological and ethical theological implication. The unity of the Godhead is to be reflected in
the unity of believers as seen in the passage in John 17: 22: That they may be one as we are one.
This viewpoint shapes my relationship with the local church where disparity in talents, functions,
and experience can be valued as an embodiment of the divine life.
. Millard J. Erickson, Christian Theology, 3rd ed. (Grand Rapids: Baker Books, 2013).
1