True marriage is a unique and exclusive relationship

Genesis 2:4-25
The Lord formed the man from the dust of the ground and breathed into his nostrils鼻孔 the breath of life, and the man became a living being.
God commanded the man "You are free to eat from any tree in the garden; but you must not eat from the tree of the knowledge of good and evil, for when you eat of it you will surely die."
The God made a woman from the rib he had taken out of the man, and he brought her to the man. The man said "This is now bone of my bones and flesh of my flesh; she shall be called woman for she as taken out of man."
For this reason a man will leave his father and mother and be united to his wife, and they will become one flesh.
It is focuses on the first two human beings and their relationship with God.
Significantly, God now has a different name. In the first story he was Elohim, God the Creator, the one High God. Now he is Yahweh (Jehovah) Elohim, the personal name by which he can be known.
Why?
Man was made from the dust of the ground so man will go back to the ground when he died.
You will surely die, is the really die in spiritual and physical for the sin; against the commands of the Lord.
So man and woman should leave his parent and be united, become one flesh. It is the unit of a family. They are naked, totally open to one another.
True marriage is a unique and exclusive relationship.
Adam in Hebrew is both a personal name and a word for 'mankind'.
How?
True marriage is a unique and exclusive relationship. God's name are Yahweh (Jehovah) Elohim.