This is not a false gospel, this is the whole gospel, wake up brother, the wages of sin is death, if we are not walking after the Spirit and are walking after the flesh, we are under the law and in condemnation. We should say and believe in our hearts, "I will never sin again, I can do all things through Christ Jesus who strengthens me." Now if we do sin, we quickly repent, repent and turn from it, confess and admit to God he is right and that it is wrong and believe through Jesus Christ we never have to sin again. It is possible, if it weren't, Jesus wouldn't have said, "Go and sin no more."