What does it mean to speak of God as "triune?"

Theologically speaking, throughout the Bible, there are
repeated references to what is called the " href="http://dictionary.reference.com/browse/trinity">trinity."
Dictionary.com defines the "trinity" as:

readability="9">

the union of threepersons (Father, Son, and Holy
Ghost) in one Godhead, or the threefold personality of the one Divine
Being

href="http://dictionary.reference.com/browse/triune">Triune also has the
same prefix, "tri-" which means three, and is defined, also by Dictionary.com
as:

three in
one; constituting a trinity in unity, as the
Godhead

The three are known
as the Father (God), the Son (Jesus), and the Holy Ghost (Holy Spirit). Christians in
the Bible are encouraged to pray—and address their prayers—to the "trinity." Prayers are
often closed with the phrase, "In the name of the Father, the Son and the Holy Ghost,
Amen."

In the Scriptures, God is described as having three
separate "manifestations," equal, yet different, each with different
responsibilities.

Of the responsibilities each member of
the trinity "carries out..."

readability="6">

Each person of the Godhead has an individual
mission and the triune God has a collective mission. Jesus was God’s presence on earth
and the Spirit is God’s comfort on the
earth.

There is also a
distinction between the "savior" in the Old Testament, and the Savior of the New
Testament:

readability="12">

Jesus assumes the work of Savior in the New
Testament. “And she shall bring forth a son, and thou shalt call his name JESUS: for he
shall save his people from their sins.” (Matthew 1:21) In the Old Testament, only God
was Savior. “I, even I, am the LORD; and beside me there is no savior.” (Isaiah 43:11)
Jesus shares equality and authority with
God.

Pagewise (©2002), at
eSSORTMENT.com, summarizes the triune God, or trinity in the following
terms:

God
the Father testifies to the Godhood of the Son and sends His Holy Spirit to comfort us.
He is also our Judge in heaven, while Jesus Christ is our defense attorney and the Holy
Spirit is our intercessor. Each person of the Godhead has a unique function, yet they
all share the work of salvation...