What Is the Trinity?In the next two classes, we will cover a very important concept in the Christian faith. It is the concept of the Trinity. It is one of the most mysterious doctrines of our Christian faith.
Activity: List the names of all the Greek and Roman gods that you know.
Unlike many other religious beliefs, as Christians, we believe there is only one God.
The trinity is affirming that God is "one in essence" and "three in person."
2.1 There Is Only One God in Essence- The Greek philosophers were looking for ultimate reality, that which does not manifest change. They were looking for the essence of things. They called it the _ousios_, which is the present participle of the Greek verb “to be.” We would translate _ousios_ into English by the word _being_. The best synonym for the Greek idea of being may be the English word _essence_.
- From the very beginning, the Bible teaches us that there is only one God.
- Read **Genesis 1:1**
- There is one and only one God.
- This one God made everything.
- The Bible speaks that our creator God is the only one God. There is no other.
- Read **Deuteronomy 6:4**
- 1 Kings 8:60 — "so that all the peoples of the earth may know that Yahweh is God; there is no one else."
- The Bible is clear. There is one and only one God.
- Read **Exodus 20:3**
- Is God saying that we can have many gods, but God needs to be first?
- "before me" means "in my presence."
- And the presence of Yahweh God extends throughout the entire creation.
- No, God is saying that there are no other gods because God alone reigns as deity.
One God in Three PersonsActivity: Take two minutes to choose who is your favorite superhero.
- This is one of the hardest Christian doctrines to understand. But it's still important for us to understand for two reasons.
- This is who God really is.
- Seeing God as one in essence and three in person allows us to understand the ways in which the Father, Son, and Holy Spirit relate to one another and do their work.
Myth #1: Modalism
- All three persons of the Trinity are one person but they behave in unique "modes."
Myth #2: Tritheism
- There are not three gods. That would be tritheism which is a form of polytheism.
- To say that there is one God in three persons is not a contradiction. Rather, it is a paradox.
- A paradox refers to something that, when placed alongside of something else, appears to be contradictory until closer examination reveals it is not so.
- Contradiction
- God is one in essence and three in essence.
- God is one in person and three in person.
- Paradox
- God is one in essence and three in person.
- The word _person_ is equivalent to the term _subsistence_. In this word, we have the prefix _sub_ with the same root word, _sisto_, so _subsistence_ literally means “to stand under.” Thus, this word gets at the idea that while God is one in essence, there are three subsistences, three persons, that stand under the essence. They are part of the essence. All three have the essence of deity.
- The concept of the trinity is not completely taught in the Old Testament, but there are hints of it.
- Gen 1:26 - "Then God said, “Let us make man in our image, after our likeness."
- Gen 3:22 - "Then the LORD God said, “Behold, the man has become like one of us in knowing good and evil."
- Gen 11:7 - "Come, let us go down and there confuse their language, so that they may not understand one another’s speech."
- Isa 6:8 - "And I heard the voice of the Lord saying, “Whom shall I send, and who will go for us?”
- We do not have the full revelation of the Trinity until the New Testament.
Read **Matthew 3:16–17**
- Here we see all three persons present.
- We hear the voice of God the