Mar_15:46 And he bought fine linen, and took him down, and wrapped him in the linen, and laid him in a sepulchre which was hewn out of a rock, and rolled a stone unto the door of the sepulchre.
Luk_23:53 And he took it down, and wrapped it in linen, and laid it in a sepulchre that was hewn in stone, wherein never man before was laid.
This is the shroud. Joseph took Christ off the cross and put this linen shroud over him. John leaves this out and only addresses what others did with the body afterward.
Joh 19:38 And after this Joseph of Arimathaea, being a disciple of Jesus, but secretly for fear of the Jews, besought Pilate that he might take away the body of Jesus: and Pilate gave him leave. He came therefore, and took the body of Jesus.
Joh 19:39 And there came also Nicodemus, which at the first came to Jesus by night, and brought a mixture of myrrh and aloes, about an hundred pound weight.
Joh 19:40 Then took they the body of Jesus, and wound it in linen clothes with the spices, as the manner of the Jews is to bury.
As you see, John leaves out that Joseph was the first to cover Jesus with linen. Later, people come to the grave and add things like spices and linen clothes and the napkin.
I don't agree at all, to be honest, and please don't take it as disrespect at all, but you interpretation sounds like one you're trying to fit to a preconceived notion. You're adding to scripture to make it fit what you want. This verse, John 20:5-7 it worded very clearly. This bible version is the only one you can even make this argument with,
"5 And stooping to look in, he saw the linen cloths lying there, but he did not go in. 6 Then Simon Peter came, following him, and went into the tomb. He saw the linen cloths lying there, 7 and the face cloth, which had been on Jesus' head, not lying with the linen cloths but folded up in a place by itself "
There is no way you can make this "face cloth, which had been on Jesus head", some napkin brought later. What are you even talking about? This verse alone makes it so clear, by Gods word, that the shroud is fake. If that is not enough, lets look at Luke 24:12 real quick.
‘Peter got up and ran to the tomb and stooping down and looking in, he saw the strips of linen cloths alone by themselves, and he went home, wondering about what had happened’
I think, and this is only my opinion, supported by scripture, but my opinion in it none the less, God has made it pretty clear these wrappings were more than one piece, and not only that, because that wouldn't necessarily rule the shroud out on it's own, but God tells us that one of the pieces was one that covered His heads. Also it's said over and over that He was "wrapped" in these cloth"s", They called them wrappings, and honestly you don't describe covering someone in a shroud that way. It just doesn't make sense really.
Anyway I put a couple biblical body shots out there to this shroud, how do you think through and past these huge problems enough to still believe it's real?