This thread is a good example of why a basic theology course should be required at
every church.
Some helpful definition of terms:
Ousia. This Greek word was translated into the Latin
Substantia, where we get
Substance. Ousia refers to a thing's
thing-ness or
what-ness. It is the essence, the substance, the nature, the fundamental
what of a thing.
Being.
God is one Ousia, God is one Thing, one Substance or Nature or Essence. Hear O Israel, the LORD your God, the LORD is
one.
Hypostasis. This Greek word is a bit trickier, but basically it was translated into Latin as
Persona, where we get
Person. It's also translated as
Subsistence. In the technical language of Trinitarian thought Hypostasis refers to a fundamental reality, the underlying-ness; the word is literally a compound of
hypo ("under") and
stasis ("to stand").
God is Three Hypostases. The Father is the Father, not the Son nor the Holy Spirit. The Son is the Son, not the Holy Spirit nor the Father. The Holy Spirit is the Holy Spirit, not the Father nor the Son. This is the Father's
Father-ness, the Son's
Son-ness, and the Spirit's
Spirit-ness. Or think of it this way" the reality of the Father is that He is the Father of the Son; the reality of the Son is that He is the Son of the Father; the reality of the Spirit is that He is the Spirit of the Father and the Son.
Ousia describes God's
God-ness. Hypostasis describes the Father's
Father-ness, the Son's
Son-ness and the Spirit's
Spirit-ness.
The Three share one, eternal, undivided Ousia: God. The Father is the one, eternal and undivided God. The Son is the one, eternal and undivided God. The Holy Spirit is the one, eternal and undivided God.
What the Father is, so is the Son and the Holy Spirit.
What the Son is, so is the Spirit and the Father.
What the Spirit is, so is the Father and the Son.
The Father is unbegotten and not proceeding.
The Son is begotten but not proceeding.
The Spirit is proceeding but not begotten.
Another term:
Homoousios. For a more detailed look at the controversy surrounding this word which led to the Council of Nicea, Google it. It's worth it. Here's what it means: "the same ousia" that is "the same being";
homo ("same") +
ousia ("being").
The Father, "before all ages" has begotten His Son. The Son is
homoousios with the Father, the Son is the same
Being, the same
Substance, the same
Ousia with the Father. The Son is "begotten, not made". The Son is "God of God". The Holy Spirit proceeds from the Father [and the Son] (depending on which side of the whole
Filioque debate you fall on), is "one with the Father and the Son" and "is to be worshiped and glorified".
The Three Hypostases are
distinctbut not
separatefrom each other.
Distinct: "Readily distinguishable from all others; discrete."
Source
Separate: "To set or keep apart; disunite."
Source
These are not "parts", God is undivided, un-partitioned, un-separated. One, Whole, Complete, Perfect.
These are
distinct. The Father's Father-ness is distinct from the Son's Son-ness, and so forth. As already stated: the Father is the Father of the Son (that's why He is called
the Father); the Son is the Son of the Father (that's why He is called
the Son); and the Holy Spirit is the Spirit of the Father and the Son (that's why He is called
the Holy Spirit).
I'm going to end this here, I'm rather tired. It would have been nice to touch also upon the concept of
Perichoresis here in this post.
What I will do is leave a link to a totally awesome explanation of the Trinity that was given at the Eleventh Council of Toledo (a local Spanish council from the 7th century).
Link is found here:
click me!
I hope this made sense and has been at least partly helpful.
-CryptoLutheran