On the contrary, not only do I get it, I have presented numerous points which support understanding that the Gospel, though prophesied, was not revealed in the Old Testament.
If you would only take a look at this issue, instead of relying on your own understanding, you will get if as well.
Now here is the thing I want you to consider why this is not what we limit the Mystery of the Gospel of Jesus Christ to: both Jew and Gentile were in need of being baptized into Christ and therefore reconciled to God.
Do you understand the significance of this point?
In order for you to limit the Mystery to Gentile Inclusion, the obvious demand is that Jews were already aware of the Gospel of Christ, and were reconciled to God, immersed in Him in eternal union.
Is that what you want to say?
But that is not possible, because...
1. We are told both Jew and Greek (Gentille) are made one in Christ;
2. No-one was in Christ prior to Pentecost;
3. No-one was eternally redeemed;
4. Being born of God did not start until Christ came, died, resurrected, returned to Heaven, and sent the Promised Spirit.
Now, I can back up all of these points with numerous passages of Scripture, because all Scripture testifies of these truths. Would you like to challenge them, or any one of them? As I have said before, and it remains true, you will not...because you cannot.
Time to leave your comfort zone, Revmitchell, and start studying the Word of God.
Continued...
None of that has anything to do with discovering what the mystery was. Scripture is clear, definitive, and without question:
Eph 3:4 When you read this, you can perceive my insight into the mystery of Christ,
Eph 3:5 which was not made known to the sons of men in other generations as it has now been revealed to his holy apostles and prophets by the Spirit.
Eph 3:6 This mystery is that the Gentiles are fellow heirs, members of the same body, and partakers of the promise in Christ Jesus through the gospel.
Do you get that! Scripture says the "mystery is". Scripture tells us in one short passage what the mystery is.
There is no scripture that says the mystery is......anything else except the Gentile inclusion. This passage of scripture trumps your philosophy and twisting of other scripture.
Again, not sure why all this needs explaining.