There is both continuity and discontinuity between our bodies now and in the resurrection. Most theologians regard the resurrected Jesus as the exemplar of what that might be, which is how @Christy is approaching it. Paul uses the metaphor of seed and mature plant to describe the relationship between the present and the future body. Can you look at a seed and guess what the plant will be like? In that sense, I think you could argue for some kind of fundamental difference between “then” and “now,” but what will it be? We can only speculate, but in the meantime, both of you are describing opposite sides of the same coin. (Me, too.)
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