When he had said those things, I saw him seemingly being seized by them. And I said "What do I see, O Lord? That it is you yourself whom they take, and that you are grasping me? Or who is this one, glad and laughing on the tree? And is it another one whose feet and hands they are striking?"
The Savior said to me, "He whom you saw on the tree, glad and laughing, this is the living Jesus. But this one into whose hands and feet they drive the nails is his fleshly part, which is the substitute being put to shame, the one who came into being in his likeness. But look at him and me."
But I, when I had looked, said "Lord, no one is looking at you. Let us flee this place."
But he said to me, "I have told you, 'Leave the blind alone!'. And you, see how they do not know what they are saying. For the son of their glory instead of my servant, they have put to shame."
So this is basically Peter, the closest companion of Jesus (pbuh) being confused as to why he's seeing two Jesuses, one being nailed on the cross, and the other standing on a tree watching. And Jesus telling him that the one on the tree is truly himself, while the one being crucified is a substitute!
And then you look at the Qur'anic verse in surat al-Nisa' 157
و قولهم انا قتلنا المسيح ابن مريم رسول الله وَمَا قَتَلُوهُ وَمَا صَلَبُوهُ وَلَـكِن شُبِّهَ لَهُمْ وَإِنَّ الَّذِينَ اخْتَلَفُواْ فِيهِ لَفِي شَكٍّ مِّنْهُ مَا لَهُم بِهِ مِنْ عِلْمٍ إِلاَّ اتِّبَاعَ الظَّنِّ وَمَا قَتَلُوهُ يَقِينًا {157}بَل,رَّفَعَهُ اللّهُ إِلَيْهِ وَكَانَ اللّهُ عَزِيزًا حَكِيمًا {158}النساء
And [for] their saying, "Indeed, we have killed the Messiah, Jesus, the son of Mary, the messenger of Allah ." And they did not kill him, nor did they crucify him; but [another] was made to resemble him to them. And indeed, those who differ over it are in doubt about it. They have no knowledge of it except the following of assumption. And they did not kill him, for certain. {157}
Rather, Allah raised him to Himself. And ever is Allah Exalted in Might and Wise. {158}
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Now, the Nag Hammadi scrolls are all authentic and dated to the 1st-2nd century A.D. yet they're all called "non-canonical", meaning they're not recognized as "official" parts to the New Testament. It is even theorized that the scrolls themselves were buried in fear of heretical persecution.
I feel thankful that such a document exists to show some of my christian friends.
