“Ye are my witnesses, saith the LORD, and my servant whom I have chosen: that ye may know and believe me, and understand that I am he: before me there was no God formed, neither shall there be after me.”
Isaiah 43:10
brother Hebrews is talking about the difference in Jesus the son and angels how much greater Jesus is than angels who mediated the first covenant
its God ( father ) speaking of himself in the form of a man ( son)
God had never been revealed in earth before Jesus was born it’s God stepping into the earth as a man his humanity was perfected through experiencing the struggles and plight of man’s infirmities but overcoming them he became a perfected man never touched by sin and therefore became the one mediator between God and man the man Jesus Christ
“For there is one God, and one mediator between God and men, the man Christ Jesus;”
1 Timothy 2:5
God in heaven became the mediator the man on earth
Of course this is all true. I'm explaining WHY God does things the way He does.
There are various levels of understanding the scriptures. There are messages for the mature and there are messages that cover just the basics (like "Christ and Him crucified").
From the beginning, when God said
"Let there be light", God began revealing Himself to man. In fact, all of creation was designed to display the wisdom and character of God.
His audience has always been man. Therefore, when He reveals something about Himself He does so with man in mind. Often, but not always, He delivers revelation to the OT prophets before revealing the revelation plainly in the earth.
So there is a prophesy and then there is the reality.
Like the scripture at hand:
"Your throne, O God, is forever and ever; A scepter of righteousness is the scepter of Your kingdom."
We find this first
written by the sons of Korah in Psalm 45.
Much later (perhaps over 1500 years), the writer of Hebrews then attributes the passage to Christ Jesus. This is to show, plainly, that Christ Jesus, who appeared to man in the earth,
was the living reality of Psalm 45.
This pattern,
revealed and then reality, is all throughout the Bible. God does this as a witness to man: so that what is true in the spiritual may register in the natural senses of man. It can even be recorded and written down. It is not enough that God CAN do something. He also wants man, his audience, to know WHY He does things.
Like any loving Father, He wants His children to know Him thoroughly. This is the character of an all-powerful being Who is defined by "love".
That's all I have to say about that (so far).