3. If God is unitarian, why are there so many plural descriptions in the OT (viz. plural nouns, adjectives, verbs, prepositions) to describe the one God? (as seen above).
if you don't mind Dave I'll answer that.
God in the OLD TESTAMENT speaks in the plural of what to come. the "diversity" of himself in flesh. supportive scripture, Romans 5:14 "Nevertheless death reigned from Adam to Moses, even over them that had not sinned after the similitude of Adam's transgression,
who is the figure of him that was to come".
God came in person in flesh, better known as the OFFSPRING. hence the US and the OUR.
as for Isaiah 54:5, "thy MAKER" is the Spirit, and that same Spirit shared himself in flesh and "blood" because he is the redeemer as a man. supportive scripture,
John 1:3 "
All things were made by him; and without him was not any thing made that was made.
Ecclesiastes 12:1,
Isaiah 40:28 "Hast thou not known? hast thou not heard, that the
everlasting God, the LORD, the
Creator of the ends of the earth, fainteth not, neither is weary? there is no searching of his understanding".
"EVERLASTING?", Micah 5:2 "But thou, Bethlehem Ephratah, though thou be little among the thousands of Judah, yet out of thee shall he come forth unto me that is to be ruler in Israel; whose goings forth have been from of old,
from everlasting". THIS IS A DIRECT QUOTE IN MATTHEWS CHAPTER 2 CONCERING THE LORD JESUS BIRTH.
Matthew 2:4 "And when he had gathered all the chief priests and scribes of the people together,
he demanded of them where Christ should be born.
Matthew 2:5 "And they said unto him, In Bethlehem of Judaea: for thus it is written by the prophet,
Matthew 2:6 "
And thou Bethlehem, in the land of Juda, art not the least among the princes of Juda: for out of thee shall come a Governor, that shall rule my people Israel.
and lastely , the "CREATOR" is thy "MAKER",
John 1:10 "He was in the world, and the world was
made by him, and the world knew him not.
"
made" here is
G1096 γίνομαι ginomai (ǰiy'-no-mai) v.
1. to cause to be (“gen”-erate).
2. (reflexively) to become (come into being).
3. (of events) to happen.
God the Holy Spirit, Jesus, in Flesh is the cause of the world to be, he's the CREATOR.
and yes, he's one BEING, who is ONE PERSON who "diversified" himself, or "SHARED"
HIMSELF in flesh, or a body or an earthen Temple.
there is no way around it, ONE BEING, Sharing oneself in another form. this is what the Greeks say is G243 Allos, according to Vine's dictionary, Allos expresses
a numerical difference and denotes another of the same sort.
what's a numerical difference? one... two, and what's a "same" sort, .... NATURE.
Philippians 2:6 "Who, being in the
form of God, thought it not robbery to be equal with God".
Form here is "NATURE. and what is GOD nature? Spirit, (John 4:24)a
how simple.