Saint Paul says an incredible thing: Through Jesus you can become a true child of God, and not only children but heirs, welcomed with full membership into God’s family, and not only heirs but “joint heirs,” able to call God “Father” just as Jesus does.

Trinity Sunday, for better or for worse, is the celebration of an idea: that God is not just the Creator who kick-started the universe and then retired. That God is also the redeemer who came to share our mortal life and rescued us from sin and death. That God is also the guiding Spirit who remains with us always.

God authorized and commanded me to commission you: Go out and train everyone you meet, far and near, in this way of life, marking them by baptism in the threefold name: Father, Son, and Holy Spirit.

We should never forget that our individual consciousness is not capable of conceiving or containing the fullness of truth. At the end of the day, awe is the only proper response to the greatest mysteries.

As children of God, we turn to our loving Father for mercy and forgiveness.

When Jesus goes up a mountain, two important things often happened. Whether it’s his Transfiguration, the “Sermon on the Mount,” or, in today’s gospel reading, to meet his with his disciples one last time before his Ascension, Jesus was confirmed in his special relationship with God and he gave out instructions.

God the Father is a deep root, the Son is the shoot that breaks forth into the world, and the Spirit is that which spreads beauty and fragrance. —Tertullian (c. 160-225)