The doctrine of the Holy Trinity is the central mystery of our Christian faith and life. It is a mystery because it is beyond our understanding and imagination. It is also a reality because God involves, engages in our human affairs and intervenes in our human story. His self-revelation is His initiative and is rooted in salvation history. We believe in one God in three Persons equal in majesty, undivided in splendor yet one Lord and one God ever to be adored and bound together by the most perfect love. The Trinity is not a problem to be solved but a mystery to be lived and to be grateful for. Jesus commissioned His disciples to continue His work making disciples of all nations baptizing them in the name of the Father and of the Son and of the Holy Spirit. The disciples are tasked to participate in the work of Jesus creating a new people of faith. Baptizing them in the name of the Holy Trinity indicates a new relationship, rebirth, regeneration. The sacrament of baptism is the sacrament of the Holy Trinity. It indicates that we belong to the Trinity of Persons and enter into an intimate relationship with the Triune God. God the Father is the loving Creator, the source of our redemption who adopted us as His children. In Him we live and move and have our being. He sent Jesus to save us. We are called to live in complete trust in His fatherly providence and care. God the Son accomplished the saving plan of the Father by His death on the Cross. He embraced us as His brothers and sisters. He is the Word who became one of us and revealed God’s extravagant love on the Cross. In Him we have full access to God. We are called to follow His life of humble service and selfless love. God the Spirit enables us to call God, Abba, Father. He chose us as His temple. He is our sanctifier who empowers us to participate in the life of God. He is the agent of transformation, new life and recreation. We are called to listen to His guidance and direction.