The Doctrine of the Trinity – Learning to Live in Relationship with God and with Others

The doctrine of the Trinity helps us further understand who God, Jesus Christ, and the Holy Spirit are and who we are as Christians. The Trinity names the mystery that there is one God in three persons who exist as Father, Son, and Holy Spirit. For many Christians, the doctrine of the Trinity can feel abstract, confusing, or even intimidating, but at its heart, it is meant to draw us into a relationship with God and with others. 

The three persons of the Trinity, God, Jesus Christ, and the Holy Spirit, always coexist. What we call “Father, Son, and Holy Spirit” is a way of pointing to a relationship of mutual love. God, in God’s very self, is not solitary but relational. Within the Reformed tradition, we often describe the Trinity through the language of “Creator, Redeemer, and Sustainer,” emphasizing the ways God is continually active in covenant relationship with us. In this description of the Trinity, God creates, gives, and orders life, Jesus Christ redeems and reconciles humanity to God, and the Holy Spirit sustains, guides, and continually renews us each and every day. 

One of my favorite theologians by the name Leonardo Boff offers a compelling vision of the Trinity by reminding us that God’s very core is relational. His belief in the Trinity is that Father, Son, and Holy Spirit exist, not in hierarchy or separation, but in perfect communion with one another. Boff believes that each person of the Trinity exists in mutual giving and receiving, bound together in love, equality, reciprocity, and shared life. The doctrine of the Trinity is one of the most beautiful ways we come to understand not only who God is, but who God calls us to be. This matters because it reveals something profound about the Christian life. If we are created in the image of God whose nature is relational, then we too are created for relationships. We are not meant to live in isolation from one another or apart from each other; rather, we flourish when we live in close relationships with God, with one another, and with the world around us.

Too often, the world around us teaches us that we should be self-sufficient, independent, and focused primarily on our own success, our own achievements, and our own abilities.  Yet the Trinity reveals a very different way of being: one rooted not in isolation, but in community and connection, shared flourishing, and relationships shaped by love. Because God’s very being is relational as God is three in one, then our relationships with God, with one another, and with the world around us cannot be an afterthought in our faith. Rather, they must be the foundation of our faith. This is one of the greatest invitations of our faith, to participate in the life of our Triune, relational God. The Trinity reminds us that love is not simply something God does from time to time. Love is the very essence of who God is. And because we belong to this God, we are called to reflect that same love in our own lives by becoming people who listen deeply, care generously, share burdens, celebrate differences, and seek communities where all people know they belong, are welcomed, and loved. 

The doctrine of the Trinity will always remain in some ways a mystery, but it is a mystery that opens us to a way of living that reflects God’s divine love to the world. So, instead of asking ourselves How do I understand the Trinity better? A better question might be: How am I learning to live into the kind of love that the Trinity reveals?