Danoh rejects that the fact that Christ was dying for some men's sins was hidden in plain sight (hidden wisdom of God) in the scriptures, but that is the only way Paul can tell us it was both a mystery (Romans 16:25 KJV, 1 Corinthians 2:6-8 KJV) and "according to the scriptures" (1 Corinthians 15:3-4 KJV, Romans 16:26 KJV).
Nope.
I differ in my understanding of all that.
That part of 1 Corinthians 2 is after the part about Christ having died for sins.
The gospel of the grace of God having been the babes in Christ status the Corinthians had failed to grow out of in their carnality.
As a result, Paul found himself having to lament...
1 Corinthians 2:6 Howbeit we speak wisdom among them that are perfect: yet not the wisdom of this world, nor of the princes of this world, that come to nought: 2:7 But we speak the wisdom of God in a mystery, even the hidden wisdom, which God ordained before the world unto our glory: 2:8 Which none of the princes of this world knew: for had they known it, they would not have crucified the Lord of glory.
He had found them not advanced in their understanding of the Cross to where he might share the purpose behind its salvation - the Mystery.
The Body's glory in and with the Lord of Glory in Glory according to said Mystery.
This Mystery spells out, not God's plan for the Earth; but for those falllen high places in the Heavenlies, and by that, making possible His plan for the Earth, Eph. 1:10; 6:12.
Ephesians 1:10 That in the dispensation of the fulness of times he might gather together in one all things in Christ, both which are in heaven, and which are on earth; even in him: 1:11 In whom also we have obtained an inheritance, being predestinated according to the purpose of him who worketh all things after the counsel of his own will: 1:12 That we should be to the praise of his glory, who first trusted in Christ.
The Adversary had offered the Lord the kingdoms of this world only as a means against God's PROPHESIED aspect in God's Man: the Man; Christ Jesus.
Matthew 4:8 Again, the devil taketh him up into an exceeding high mountain, and sheweth him all the kingdoms of the world, and the glory of them; 4:9 And saith unto him, All these things will I give thee, if thou wilt fall down and worship me.
The Adversary had believed he would still have (in his mind anyway) that "spiritual wickedness in high places" which; is actually the key to both aspects of God's Two-Fold Purpose: Prophecy and Mystery.
Ephesians 2: 2's "the course of this world, according to the prince of the power of the air, the spirit that now worketh in the children of disobedience:" being run by those "principalities, against powers, against the rulers of the darkness of this world," that "spiritual wickedness in high places" Eph. 6:12.
Making this...
Matthew 6:10 Thy kingdom come. Thy will be done in earth, as it is in heaven.
Impossible to God's desired intent until the sum up of it all as one in One.
Ephesians 1:9 Having made known unto us the mystery of his will, according to his good pleasure which he hath purposed in himself: 1:10 That in the dispensation of the fulness of times he might gather together in one all things in Christ, both which are in heaven, and which are on earth; even in him: 1:11 In whom also we have obtained an inheritance, being predestinated according to the purpose of him who worketh all things after the counsel of his own will: 1:12 That we should be to the praise of his glory, who first trusted in Christ.
Turned out God's PROPHESIED aspect: His plan to reconcile THE EARTH back unto Himself BY THE CROSS, had NOT been all that God had planned to TAKE BACK the captivity of BY THE CROSS.
That is what Paul is lamenting in 1 Cor. 2 - his being unable to edify the Corinthians in much of that...
Why?
1 Corinthians 3:1 And I, brethren, could not speak unto you as unto spiritual, but as unto carnal, even as unto babes in Christ. 3:2 I have fed you with milk, and not with meat: for hitherto ye were not able to bear it, neither yet now are ye able. 3:3 For ye are yet carnal: for whereas there is among you envying, and strife, and divisions, are ye not carnal, and walk as men?
Thus, Paul's "Howbeit" in 1 Cor. 2:6.
Like I said, heir; we differ our understanding of the basic fundamentals all else is the result of.