Ambrose of Milan
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.
Let us then consider how it happens that the Apostles according to John believed and rejoiced, according to Luke are reproved as unbelieving. John indeed seems to me, as being an Apostle, to have treated of greater and higher things; Luke of those which relate and are close akin to human. The one follows an historic course, the other is content with an abridgment, because it could not be doubted of him, who gives his testimony concerning those things at which he was himself present. And therefore we deem both true. For although at first Luke says that they did not believe, yet he explains that they afterwards did believe.