The Catechism of the New Apostolic Church

3.1.1 One God in three persons

The trinity of God is a mystery. The Trinitarian formula, "In the name of God, the Father, the Son, and the Holy Spirit," does not use the plural "names", but the singular: "the name". The one God is the triune God. In His words to the Apostles, Jesus allowed them to recognise the trinity of God by stating that they were to baptise "in the name of the Father and the Son and the Holy Spirit" (Matthew 28: 19). When we speak of God as "the Father, the Son, and the Holy Spirit", we do not imply that these are three different Gods, but rather three persons (hypostases), who are the One God.