Let us now see in what body he asserts that the dead will come. And with a felicitous sally he proceeds at once to illustrate the point, as if an objector had plied him with some such question. “Thou fool,” says he, “that which thou sowest is not quickened, except it die.” From this example of the seed it is then evident that no other flesh is quickened than that which shall have undergone death, and therefore all the rest of the question will become clear enough. For nothing which is incompatible with the idea suggested by the example can possibly be understood; nor from the clause which follows, “That which thou sowest, thou sowest not the body which shall be,” are you permitted to suppose that in the resurrection a different body is to arise from that which is sown in death. Otherwise you have run away from the example.
…Cleave firmly then to the example, and keep it well in view, as a mirror of what happens to the flesh: believe that the very same flesh which was once sown in death will bear fruit in resurrection-life—the same in essence, only more full and perfect; not another, although reappearing in another form.
Tertullian
On the Resurrection of the Flesh
Chapter LII