My son is at the age where he is questioning everything with an endless stream of "why, why, why?" Each answer leads to a new question. Eventually, the little man corners me, and my only reasonable response becomes "I don't know." Trying to explain the mysteries of God is a lot like that.
I will not be so arrogant as to assume I have all the mysteries of God mastered. What I do have is what God has chosen to reveal of himself to us...in Jesus and by his Spirit. Our new summer teaching series is not about the philosophical or empirical struggle to define the Trinity intellectually. Anne Lamott in her book Plan B said this: "I didn't need to understand the hypostatic unity of the Trinity; I just needed to turn my life over to whoever came up with the redwood trees." The doctrine of the Trinity can be summed up like this: Within the unity of the Godhead, there are three separate persons, co-equal in power, nature, & eternity -- Father, Son, & Holy Spirit. You can know this and miss God!
Our new series isn't a series focusing just on Christian doctrine as much as it is an invitation to wonder and amazement and to find yourself invited into relationship with the Living God. God is not a remote authority figure who is unknowable, but he has made himself accessible. Yes, God is mysterious, but he is knowable to some extent. There is always more of God that we can know, more of God than we can explain, and more of God than we can show. However, he gives us glimpses of himself (and in doses we can handle).
There is a fantastic story in the Old Testament book of Exodus (33) where Moses was frustrated with Israel and was asking the Lord for his Presence. God promised Moses that he would be with him, but then Moses asked to see God's face. God wouldn't do it, because Moses couldn't have handled all of God's glory. So the Lord passed by, and Moses got a glimpse of his back. What we need to know of God is revealed in Jesus!
Jesus has made God accessible. In Romans 5:1-2, Paul said, "...we have peace with God through Jesus Christ through whom have gained access by faith to his grace..." Jesus has come close to us to make it possible for us to know God. The Father, Son, & Holy Spirit are conspiring together to bring us into God's community. He is not distant; he is accessible and close.