Luke 24:39

Our Lord said this in order to afford us an image of our resurrection. For that which is handled is the body. But in our bodies we shall rise again. But the former is more subtle, the latter more carnal, as being still mixed up with the qualities of earthly corruption. Not then by His incorporeal nature, but by the quality of His bodily resurrection, Christ passed through the shut doors.

Here then was a most evident sign that He whom they now see was none other but the same whom they had seen dead on the cross, and lain in the sepulchre, who knew every thing that was in man. Now our Lord testifying that death was overcome, and human nature had now in Christ put on incorruption, first shows them His hands and His feet, and the print of the nails; as it follows, Behold my hands and my feet, that it is I myself.

(Mor. 14. c. 55.) For in that glory of the resurrection our body will not be incapable of handling, and more subtle than the winds and the air, (as Eutychius said,) but while it is subtle indeed through the effect of spiritual power, it will be also capable of handling through the power of nature.

But He adds also another proof, namely, the handling of His hands and feet, when He says, Handle me and see, for a spirit hath not flesh and bones as ye see me have. As if to say, Ye think me a spirit, that is to say, a ghost, as many of the dead are wont to be seen about their graves. But know ye that a spirit hath neither flesh nor bones, but I have flesh and bones.