Romans 8:11

Romans 8:11. But if the Spirit of him that raised up Jesus from the dead dwell in you, he that raised up Christ from the dead shall also quicken your mortal bodies by his Spirit that dwelleth in you.

So there is coming a time for your body to experience the adoption, to wit, the redemption of the body. He does not say that he will give you a new body. Do not believe this modern doctrine. But he shall quicken your mortal body; that is to say, the same body, which is now subject to death, and so is mortal, is to be quickened at the resurrection.