 A Trinity doctrine is commonly expressed as the statement that the one God exists as or in three equally divine “Persons”, the Father, the Son, and the Holy Spirit. Every term in this statement (God, exists, as or in, equally divine, Person) has been variously understood. The guiding principle has been the creedal declaration that the Father, Son, and Holy Spirit of the New Testament are consubstantial (i.e. the same in substance or essence, Greek: homoousios). Because this shared substance or essence is a divine one, this is understood to imply that all three named individuals are divine, and equally so. Yet the three in some sense “are” the one God of the Bible.