Has someone ever borrowed your car? Suppose that you had a brand-new car, which you just drove home from the dealer, and it only had 10 miles on it. Now imagine that a friend came over and you let him borrow it. What would you think (and how would you like it?) if your friend returned the car and it had paint splattered all over the 
outside, it had dozens of empty beer bottles on the floors that had been spilled all over the leather seats, it had cigarette butts littering every visible crevice, it had all of the windows broken out, and it looked like your friend had done everything possible to destroy your brand-new car, rather than carefully maintain it?
Now, consider this. God let you borrow HIS (not yours) brand-new body when He gave it to you at your birth. It truly (and in actuality) belongs to Him! How are you taking care of it? In what condition do you plan to return to Him? Are you treating it like the borrowed car illustration above? Or, are you using it to “glorify God” in all that you do (1 Cor. 6:19-20)? Think about it. I need to use my body in ways that would be acceptable to Him and would honor Him!