In the parable of the sower, "those are the ones on whom seed was sown on the good soil; and they hear the word and accept it and bear fruit, thirty, sixty, and a hundredfold." You say they sin from time-to-time but don't fall into a lifestyle of sin, and say that even though they couldn't have known Him and then at later time "never" known Him. I claim believers are like John's parents (Luke 1:6) without the burden of the Mosaic ordinances (Col 2:14).
Jesus said to people like you, "If you were blind you would have no sin." That is equivalent to saying, if you walked by faith instead of sight, you would have no sin. It's also the equivalent of saying, "Walk in the Spirit and you will not fulfil the lust of the flesh." You are on the other side with the father of lies arguing that if a person walks by faith, walks in the Spirit, he will still occasionally sin. You think you see, so your sin remains.
It is written,
And Jesus said, "For judgment I came into this world, so that those who do not see may see, and that those who see may become blind." Those of the Pharisees who were with Him heard these things and said to Him, "We are not blind too, are we?" Jesus said to them, "If you were blind, you would have no sin; but since you say, 'We see,' your sin remains."
Jesus said to people, "Sin no more so a worse thing doesn't happen to you." Why would the Lord tell people they could "sin no more" and "have no sin" if, as you obviously believe, they would always sin occasionally until the grave? You will never grasp the truth until you concede that we must completely cease from sin of perish, and recognize your idea of a "lifestyle" of sin is illogical.
Like Peter who denied Him at the cross? Jesus told Peter just before the cross that he wasn't converted, that satan desired to sift him, but that Jesus would pray for him so that WHEN he was converted he would strengthen his brethren. We don't know when Peter was coverted, but he taught we had to cease from sin. He states unequivocally that those who have the mind of Christ have ceased from sin.
When Paul tells those certain Corinthians that they are still carnal not spiritual, he's telling them that they haven't believed the gospel yet.
That's not in scripture. It is written that
a good tree cannot bear bad fruit. Sin is bad fruit. If I can't know you are an unbeliever because you occasionally sin, then the saying is pretty much worthless. 1 John 3:10 also states I can know you by your occasional bad fruit. You're living the lifestyle!