We know that Jesus did not sin, for the scriptures say that.
We do however still sin, even when born again, and yes Paul does say spiritually he does not sin but the body does sin. Therefore he still does things he shouldn't.
Sinning after being born again part only applies if you consider that as when you have a change in mind/heart.
Others look at it this way:
Born of water and spirit; the water ( natural birth in the flesh ), spirit ( when we are transformed into our spiritual bodies )
We do however still sin, even when born again, and yes Paul does say spiritually he does not sin but the body does sin. Therefore he still does things he shouldn't.
Sinning after being born again part only applies if you consider that as when you have a change in mind/heart.
Others look at it this way:
Born of water and spirit; the water ( natural birth in the flesh ), spirit ( when we are transformed into our spiritual bodies )
Joh 3:5 Jesus answered, Verily, verily, I say unto thee, Except a man be born of water and of the Spirit, he cannot enter into the kingdom of God.
Joh 3:6 That which is born of the flesh is flesh; and that which is born of the Spirit is spirit.
There are two literal and very tangible births that take place in a believer, a physical birth and a just as tangible spiritual birth. The spiritual birth yields a spiritual body. We do not have spiritual bodies yet... we have not been born again of the Spirit, but when we are, we will have a spirit body.
I know this is hard to understand because everyone is taught that you are born again at salvation but that does not line up with scripture. If we were already born again, we would not sin. Why wont we sin after we are born again? Because we will have put on incorruption. We will be born into that incorruptible spiritual body.