Perhaps you may enter into discussion, seeing as how the OC is not equal to the 10C? What was the glory that was to be done away in 2 Corinthians 3:7 as Paul gives?
But if the ministration of death, written and engraven in stones, was glorious, so that the children of Israel could not stedfastly behold the face of Moses for the glory of his countenance; which glory was to be done away: 2 Corinthians 3:7
Evidently the glory was associated with the shining face of Moses [...]
Excellent! This is rarely admitted. For Moses could not steadfastly behold the Glory of the Face of the Lord Jesus!
And he said, I beseech thee, shew me thy glory. Exodus 33:18
And he said, I will make all my goodness pass before thee, and I will proclaim the name of the LORD before thee; and will be gracious to whom I will be gracious, and will shew mercy on whom I will shew mercy. Exodus 33:19
And he said, Thou canst not see my face: for there shall no man see me, and live. Exodus 22:20
And the LORD said, Behold, there is a place by me, and thou shalt stand upon a rock: Exodus 33:21
And it shall come to pass, while my glory passeth by, that I will put thee in a clift of the rock, and will cover thee with my hand while I pass by: Exodus 33:22
And I will take away mine hand, and thou shalt see my back parts: but my face shall not be seen. Exodus 33:23
THE FIRST ANGEL'S MESSAGE: THE EVERLASTING GOSPEL - YouTube
Moses could only see the backparts of God/Jesus, but now we as Paul says can see the Glory of God in the Face of Jesus Christ!
For God, who commanded the light to shine out of darkness, hath shined in our hearts, to give the light of the knowledge of the glory of God in the face of Jesus Christ. 2 Corinthians 4:6
That Law of God is the Mirror, that shows the Character of God! Notice what Paul says in 2 Corinthians 3:18
But we all, with open face beholding as in a glass the glory of the Lord, are changed into the same image from glory to glory, even as by the Spirit of the Lord. 2 Corinthians 3:18
We do not need the veil as Moses, by with "open face" "behold" "as in a glass" [Mirror] the "glory of the Lord"!
Notice, this "open face", rather than Moses' veiled face, due to the glory of it, which was to fade away, we are to "behold" "as in a glass" [a mirror] the Glory of the Lord. We see the Law of God magnified in Christ Jesus, who is the perfect embodiment of Love. What is that glass? It is the Law of God, the moral character of God as seen in the Son Jesus Christ! The living example, the living Stone, the Love and character of God manifested in person, not merely stone tables! Paul speaks of this elsewhere:
For now we see through a glass, darkly; but then face to face: now I know in part; but then shall I know even as also I am known. 1 Corinthians 13:12
and James picks upon this in his Epistle:
For if any be a hearer of the word, and not a doer, he is like unto a man beholding his natural face in a glass: James 1:23
For he beholdeth himself, and goeth his way, and straightway forgetteth what manner of man he was. James 1:24
But whoso looketh into the perfect law of liberty, and continueth therein, he being not a forgetful hearer, but a doer of the work, this man shall be blessed in his deed. James 1:25
For, going from looking at the Law of God as restrictions, and merely attempting to serve outwardly by the mere Letter, which can only bring death, since we, nor they, would not fulfill the Spirit in such a manner, for it not being of faith, we now in the Ministration of the Spirit, who writes that Same Law in our fleshy tables of the hearts, and by faith of Jesus Christ, we love God who first loved us, and His Law, because of His Son Jesus Christ, dying to deliver us from our sins, which is the transgression of the Law. We see the Law of God not as burden, but as safety, not as bondage {which is what sin is, unrighteousness}, but as freedom {which is righteousness}, not as measurements of death, but as provisions of life, not as a list of a cruel tyrant to disobey, but as God's own love towards us to obey, not as a terror to good workers {Christ the origin of the good works, for only God is good}, but a terror to evil doers, transgressors.
The prophecy is thus being fulfilled, for He magnified the Law and made it honourable. {Isaiah 42:21}
Yes, that glory of Moses face faded away, and the veil removed, for now the Glory shines full in the face of Jesus Christ. What glory and what magnification of the Law of God that the Son of God died to protect/uphold it, and thus Justice of God and to save us from our sins, revealing the Mercy and Love of God, placing both upon eternal security! Righteousness and peace, Mercy and Truth have kissed at Calvary [Psalms 85:10].
For God, who commanded the light to shine out of darkness, hath
shined in our hearts, to give the light of the knowledge of the glory of God in the face of Jesus Christ. 2 Corinthians 4:6
For what could not be done through the mere letter, was done/being done by the Holy Spirit. What could not be done through shadows and types, we see done/being done in Christ Jesus. What could not be done by their/our promises, are done by His. What could not be done by unbelief is being done by the Faith of Jesus.
Now the Lord is that Spirit: and where the Spirit of the Lord is, there is liberty. 2 Corinthians 3:17
For where the Spirit of the LORD is, there is Liberty, Freedom from the Bondage of Sin, freedom from Transgression of the Law of God! For what the letter could not do, the Spirit does! The Letter was external, but the Spirit in the Heart! The same Law, but differing Ministrations! And what a ministration the Spirit brings - Life, even Everlasting Life, for we are brought back from the everlasting grave which would have been ours, but now to live in the awesome freedom of obedience to His Blessed Will, His Perfect Law, which the Son Jesus Christ, sustained by His own Blood and Life, and at the same time pulling us back from the brink of destruction! He is Just and the Justifier!