Compare these two verses:
1 John 1: 8 - If we say that we have no sin, we deceive ourselves, and the truth is not in us.
1 John 3: 9 - Whosoever is born of God doth not commit sin; for His seed remaineth in him, and he cannot sin, because he is born of God.
One verse says believers sin. A few verses later it says believers cannot sin. So which is it?
Do you think it is possible that one verse is talking about your body, and the other verse is talking about a born again believers' new spirit - both of which are "you", individually and/or collectively?
If not, please explain how a believer can both sin and "cannot sin" at the same time.