Scripture shows the Father, Son, and Holy Spirit as God (Matt 28:19; John 1:1; Acts 5:3–4).
The disciples of the apostles (Polycarp, Ignatius) and their students (Irenaeus) teach the same thing.
That means this didn’t come from later “Christendom”........it came from the apostles.
FreeInChrist:
None of the scriptures you listed above indicate, to quote you: "
Scripture shows the Father, Son, and Holy Spirit as God."
Let's begin with Matthew 28:19.
If the mentioning of three entities in the same verse of scripture at Matthew 28:19 = they are the same god, does the mentioning of
(1) FreeInChrist,
(2) the biological father of FreeInChrist, and
(3) a
possession of FreeInChrist's biological father = all three are the same human being?
The scripture at John 1:1 starts off as follows: "In the
beginning was the Word , . . . " According to the first independent clause of John 1:1, the spirit person referred to as "the Word" aka Jesus Christ had a beginning. Scripture at Psalm 90:2 says Almighty God
does not have a beginning.
"Before the mountains were born or you brought forth the whole world,
from everlasting to everlasting you are God." (Psalm 90:2 -- New International Version)
Acts 5:3-4 since Jehovah owns the holy spirit, when we sin against God's holy spirit, by extension, we are sinning against God.
"The earth was without form and void, and darkness was over the face of the deep. And
the Spirit of God was hovering over the face of the waters." (Genesis 1:2 -- English Standard Version)