Scarcely any truth seems more clearly taught in the Bible than the future resurrection of the body. Yet this doctrine has always been met by a most formidable objection. It is said that the body laid in the grave is ere long decomposed into its elements, which are scattered over the face of the earth, and enter into new combinations, even forming a part of other human bodies. Hence not even Omnipotence can raise from the grave the identical body laid there, because the particles may enter successively into a multitude of other human bodies. I am not aware that any successful reply has ever been given to this objection, until chemistry and natural history taught us the true nature of bodily identity; and until recently the objector has felt sure that he had triumphed. But these sciences teach us that the identity of the body consists, not in a sameness of particles, but in the same kinds of elementary matter, combined in the same proportion, and having the same form and structure. Hence it is not necessary that the resurrection body should contain a single particle of the matter laid in the grave, in order to be the same body; which it will be if it consist of the same kinds of matter combined in the same proportions, and has the same form and structure. For the particles of our bodies are often totally changed during our lives; yet no one imagines that the old man has not the same body as in infancy.[2] What but the principles of science could have thus vindicated a precious doctrine of revelation? In the description which Paul gives of the spiritual body, a naturalist,--and I fancy no one but a naturalist,--will discover its specific identity. By this I mean that it will possess peculiarities that distinguish it from every thing else, but which are so closely related to the characteristics of the natural body in this world, from which it was derived, that one acquainted with the latter would recognize the former. Hence the Christian's friends in another world may be recognized by him from their external characters, just as we identify the plants and animals of spring with those that seemed to perish in the preceding autumn. There is neither time nor room for the proof of this exegesis, which is founded chiefly upon the principles of natural history; but for their elucidation, I must refer to another place.[3]