3 Meanwhile let us yield to the opinion, which we are unable to refute by any certain evidence, lest we stir up still another question that may be put to us, Why the very ground should seem in a kind of way to live and breathe upon the interred corpse? But can so great a question as the one before us be settled on such grounds as these, if by a great miracle, such as can be wrought by the Almighty, the living body lies so long asleep beneath the ground, till the coming of the end of the world?
Nay, rather, does there not arise a wider and more difficult one, why Jesus bestowed on the disciple, whom He loved beyond the others to such an extent that he was counted worthy to recline on His breast, the gift of a protracted sleep in the body, when He delivered the blessed Peter, by the eminent glory of martyrdom, from the burden of the body itself, and vouchsafed to him what the Apostle Paul said that he desired, and committed to writing, namely, “to be let loose, and to be with Christ”? But if, what is rather to be believed, Saint John declared that the Lord said not, “He dies not,” for the very purpose that no such meaning might be attached to the words which He used; and his body lies in its sepulchre lifeless like those of others deceased; it remains, if that really takes place which report has spread abroad regarding the soil, which grows up anew, though continually carried away, that it is either so done for the purpose of commending the preciousness of his death, seeing it wants the commendation of martyrdom (for he suffered not death at a persecutor's hand for the faith of Christ), or on some other account that is concealed from our knowledge. Still there remains the question, why the Lord said of one who was destined to die, “Thus I wish him to remain till I come.”
Source: Tractates on the Gospel of John (New Advent)