1. The Trinity is not an optional doctrine, it is essential. God’s unity is not behind God’s threeness, God’s unity is in God’s threeness. This is not speculative mathematics, it is a descriptive theology of revelation.
2. The Trinity is not an academic doctrine thought up by clever scholars, rather it grew out of the Christian experience of worship, i.e. it expressed the early church’s pattern of prayer tothe Father, through the Son, in the Spirit.
3. The driving force of the development of the doctrine of the Trinity was Christological and soteriological, i.e. it served to articulate the Christian experience of salvation in Christ. The first Christians already knew God; through Jesus they came to know God as Jesus’ Father and Jesus as God’s Son; while in the Spirit Jesus continued to be present to them, forming a family of prayer to the Father and building a community of witness to Christ.