The Trinity—three persons, one God—is a mystery far beyond our comprehension. But rather than trying to grasp it, Jesus tells his followers to go out and make disciples from all the nations on earth in the name of the Father, the Son, and the Holy Spirit. In that encounter with a diverse group of others, all made in the image of God, we will learn more about God than we will by pondering the mystery.
Based on Matthew 28:16–20:
The eleven disciples went to Galilee, to the mountain to which Jesus had directed them. When they saw him, they worshipped him; but some doubted. And Jesus came and said to them, ‘All authority in heaven and on earth has been given to me. Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, and teaching them to obey everything that I have commanded you. And remember, I am with you always, to the end of the age.’
(New Revised Standard Version Bible: Anglicized Edition, copyright © 1989, 1995 National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved worldwide. http://nrsvbibles.org)