It was a real body; there can be no doubt about that. Hundreds of people could not have been so mistaken, especially when Jesus offered clear evidence of it. But it was not an earthbound body. It was something that bore a developmental relationship to an earthly human body, but it was not identical with it. There was clearly a continuity of life between the body of Jesus and the body of the resurrected Jesus, but in the process of resurrection it had undergone a very fundamental change. That, at least, seems obvious. So much for the list of dissimilarities; the body of Jesus after the resurrection had a different appearance and also a different "form". It was "like" the previous body, it had some sort of developmental relationship to it, but it was obviously not "identical" with it. Now we must consider the similarities. Strangely, they all came down to one factor, but that factor is so important that it outweighs all the dissimilarities. It is simply this: Jesus before and after the resurrection was undeniably the same person. No matter what extraordinary changes had taken place in his bodily form, all who knew him well had no doubt at all who he was. They "knew" it was the Lord.
— David Winter
Christianity