Trinitarian Theology (TH215) begins by looking at how the doctrine of the Trinity is found in and rooted in the NT. It looks at different ways the NT describes the Trinity. It then briefly surveys the history of Trinitarian theology, looking specifically at some early heresies that helped focus the church’s theology of the trinity. The course discusses important categories of Trinitarian theology, describes the difference between the ontological and the economic Trinity, and develops the concept of perichoresis—the mutual indwelling of the Father, Son, and Spirit in the life of God.
“Perichoresis refers to the mutual indwelling of the Father and the Son and the Spirit. The Father dwells in the Son, but at the same time, the Son dwells in the Father.” (source)
“This is central to what it means to be saved. It means to be incorporated into God’s life; it means to be incorporated into the communion of Father, Son, and Spirit.” (source)
“The whole purpose of creation is that God would form a bride from humanity, so that He could bring that bride into the triune communion as the bride of His eternal Son.” (source)
“They use the word ‘persona’ to mean an individual subsistence, an individual existing subsistence of an essence” (source)
“We’re talking about God as He is in Himself (that’s the ontological or immanent Trinity) and God as He reveals Himself (that’s the economic Trinity).” (source)