Roman Catechism 13.9

Chapter 13 — Part I: The Creed — Article XI: The Resurrection of the Body

Section 9. To one asking how the dead should rise again, the Apostle answers: Foolish man! that which thou sowest is not quickened, except it die first; and that which thou sowest, thou sowest not the body that shall be, but bare grain, as of wheat, or of some of the rest; but God giveth it a body as he will; and a little after, It is sown in corruption, it shall rise in incorruption.