Sunday marks the churches focus on the theology of the Trinity. The prayer/poem by Marjorie Dobson above reminds me afresh that primarily trinity isn’t a theology but a response to experience. The disciples who followed Jesus were monotheists, brought up with the understanding of one God. Yet the reality of seeing the ministry of Jesus, and the outpouring of the Spirit at Pentecost they could only conclude one thing. It was Peter who declared of Jesus that You are the Christ. The essence of God was in their midst such that Jesus was the physical manifestation of the divine being. That connection was mimicked on the day of Pentecost.
Three into one is always a complicated sum but experience always speaks louder than words. The reality on the ground inspired the disciples to defy opinion and abuse to spread the word. It’s a good job they didn’t go out with a formula but their own personal knowledge, or the outcome might have been different!