The
Christian doctrine of the
Trinity (from Latin
trinitas "triad", from
trinus "threefold") defines
God as three consubstantial
persons, expressions, or
hypostases: the
Father, the
Son (
Jesus Christ), and the
Holy Spirit; "one God in three persons". The three
persons are distinct, yet are one "substance, essence or nature". In this context, a "nature" is
what one is, while a "person" is
who one is.