Clearly the same one who gifted Him the fullness. Hence therefore God Your God....
Col 1:19
Col 1:20 it happened at the cross.
A Son who is called God.
Isaiah 9:6
Jesus isn't God there because the translation doesn't require it to be worded that way. For example, in Ezekiel 32:21 the plural form of what is translated as "mighty God" in Isaiah 9:6 is translated as mighty chiefs, ḡib·bō·w·rîm ’ê·lê. The clue here that it's an errant translation is that Jesus is not the everlasting Father. Trinitarians don't believe the Son is the Father.
You mean in Hebrews 1?
In the past God spoke to our ancestors through the prophets at many times and in various ways, 2 but in these last days he has spoken to us by his Son, whom he appointed heir of all things, and through whom also he made the
universe.
The word for universe the isn't universe. It's about the ages being made through the Son in these last days which began some ~2,000 years ago. God didn't speak through the Son in the past, but rather through the prophets, hence why there is not one. single. quote by Jesus in the old testament. He didn't exist.
Hebrews 1
1God, having spoken long ago to
our fathers in the prophets in many portions and in many ways,
2in these last days has spoken to us in
His Son, whom He appointed heir of all things, and through whom He made the
ages,
He also says,
“In the beginning, Lord, you laid the foundations of the earth,
and the heavens are the work of your hands.
11 They will perish, but you remain;
they will all wear out like a garment.
12 You will roll them up like a robe;
like a garment they will be changed.
But you remain the same,
and your years will never end
Verse 10 is about God, not Jesus. That doesn't follow from verse 8.
You and the writer of Hebrews disagree. He stated about the Son.
But about the Son he says,
“Your throne, O God, will last for ever and ever;
a scepter of justice will be the scepter of your kingdom.
9 You have loved righteousness and hated wickedness;
therefore God, your God, has set you above your companions
by anointing you with the oil of joy
In Hebrews 1 and Psalm 45, it's evident that the mentioned king isn't the highest God. The king is blessed by God, has a queen, and is clearly a human king, not the highest God. It's also clear that the Psalm 45 passage isn't originally about Jesus because the king in it has a queen.
So, the initial statement in Psalm 45:6 isn't really talking about Jesus originally; it's about an Old Testament king. However, people later connected it to Jesus. If we say the king is called "God" in that verse, it would mean both Solomon and Jesus are considered God, which doesn't make sense. There's no clear reason to associate Psalm 45:6 with the Messiah unless verse 7 is also applied to the same king. Doing that would be reading into the text (eisegesis).
Again, for I think the 3rd time a distinction was made
Col 2:9-10
For in him the whole fullness of deity dwells bodily, 10 and you have come to fullness in him, who is the head of every ruler and authority
Being filled with the fullness of God isn't an indicator of deity. It applies to regular Christians.
Ephesians 3
19of the love of Christ, and to know this love that surpasses knowledge,
that you may be filled with all the fullness of God.
Jesus is my Lord. But I can acknowledge the nature found in Him. (all the fullness of the Fathers Deity) and one with that nature is called God. However, it is the Fathers Deity or the Fathers nature not His own-
2 Peter 1
4Through these He has given us His precious and magnificent promises, so that through them
you may become partakers of the divine nature, now that you have escaped the corruption in the world caused by evil desires.