"I tell you, Nay: but, except ye repent, ye shall all likewise perish." Luke 13:3.
The Bible teaches that we will never be perfect in the sense that we will never sin; "If we say that we have no sin, we deceive ourselves, and the truth is not in us." 1 John 1:8. However, as long as we try and repent when we do sin, there is forgiveness.