Yes, the resurrection is a concept, but the details are what matter, otherwise He wouldn’t have fulfilled the prophecies about it and wouldn’t have been recognized by the first believers.
Tell me this, would it matter to you if Christ was not born of a Virgin, or if He didn’t live a sin-free life? These are details that are important, but you’re saying that concepts are more important than details. What about the detail of “no way to the Father but by me”?
Details put the power in the concepts.
Yes.
But if there is a conflict in the details, then it really matter that you have different details than Joe Blow, as long as you agree on the concept?
I.E. Do the details of your 'faith' have to agree with my someone else's details, in order for you both to remain faithful?
What if the TRUTH is that you are both slightly wrong about the details?
What if EVERYONE is slightly wrong, just about different things?
YET... the concepts remain.
One of the biggest 'concepts' I have of Genesis is that I have no way to comprehend what a 'day' meant to GOD. Therefore, trying to compare GOD's day to mankind's modern measurement of time based on the current speed of the planet's rotation is an exercise in futility.