All the doctrines of our religion are rooted in God's self-revelation. After creating us, God could have left us in darkness to find our own way through life. However, our God is merciful and gracious, rich in kindness and fidelity. Therefore God let us see something of the divine mystery so that we would more easily understand something of the mystery of our own existence, and hear the call to share in that divine mystery. Jesus teaches us even more about God and about our vocation to be God's children. We listen to part of that teaching today. More importantly, by His life on earth, Jesus initiated us into a fuller participation in divine life. Through His life on earth, Jesus answered Moses' prayer: "Come along in our company". By His passion, death and resurrection, Jesus answered the rest of Moses prayer: "Pardon our wickedness and sins, and receive us as your own". When He rose from the dead, Jesus, the Son of God, returned to the Father, and in union with Him sent the Holy Spirit upon us. As children of the Father in union with Jesus, we receive the Holy Spirit. The difficult doctrine of the Trinity becomes a norm for our life of faith.