Bede the Venerable
Catena Aurea · Lukasevangelium 24
And as they thus spake, Jesus himself stood in the midst of them, and saith unto them, Peace be unto you. But they were terrified and affrighted, and supposed they had seen a spirit. And he said unto them, Why are ye troubled? and why do thoughts arise in your hearts? Behold my hands and my feet, that it is I myself: handle me, and see; for a spirit hath not flesh and bones, as ye see me have. And when he had thus spoken, he shewed them his hands and feet. But let us see what mystery it was for the sake of which, according to Matthew and Mark, our Lord when He rose again gave the following command, I will go before you into Galilee, there shall ye see me. Which although it was accomplished, yet it was not till after many other things had happened, whereas it was so commanded, that it might be expected that it would have taken place alone, or at least before other things.
The disciples had known Christ to be really man, having been so long a time with Him; but after that He was dead, they do not believe that the real flesh could rise again from the grave on the third day. They think then that they see the spirit which He gave up at His passion. Therefore it follows, But they were terrified and affrighted, and supposed that they had seen a spirit. This mistake of the Apostles was the heresy of the Manichæans.