The danger of unrepented sins
John 8:11 "She said, No man, Lord. And Jesus said unto her, Neither do I condemn thee: go, and sin no more."
The context of this verse is about the woman who was caught in the act of adultery, and she was brought to Jesus by the scribes and Pharisees to tempt him, so that they could find an excuse to accuse him. That was when Jesus said those famous words that even unbelievers will use against those who pass judgment on them, saying "He that is without sin among you, let him first cast a stone at her." And one by one, they left the woman because of their own conscience that condemned them.
Then Jesus said unto the woman, saying "Neither do I condemn thee: go, and sin no more." This phrase "sin no more" is also found in the account of the man who had an infirmity for 38 years, and when Jesus found him, he healed him and made him whole with the words "Rise, take up thy bed, and walk." Then the man who was healed was ostricized by the Jews who said that he has violated Moses' law for carrying his bed on Sabbath day. Afterwards, Jesus found him again at the temple and so we have the following verse:
John 5:14 "Afterward Jesus findeth him in the temple, and said unto him, Behold, thou art made whole: sin no more, lest a worse thing come unto thee."
Notice the words "sin no more, lest a worse thing come unto thee?" This brings to remembrance the following passage of scripture:
Luke 11:24-26 "When the unclean spirit is gone out of a man, he walketh through dry places, seeking rest; and finding none, he saith, I will return unto my house whence I came out. 25 And when he cometh, he findeth it swept and garnished. 26 Then goeth he, and taketh to him seven other spirits more wicked than himself; and they enter in, and dwell there: and the last state of that man is worse than the first."
Notice that the last state of the man is worse than the first because when the unclean spirit was casted out from him at first, went out and took seven other spirits more wicked than himself, and dwelt there. That goes to show how unrepented sin will open the door for more unclean spirits to enter into the man, so that the last state of that man is worse than the first. A sin truly repented is like the "door" of a house that was fully shut, so that when an unclean spirit is cast out of that house, it could no longer enter into that house. An unrepented sin is like a house that was swept and garnished, but the door was left unlocked so that unclean spirits can freely enter in and dwell there. Peter explains:
2 Peter 2:19-22 "While they promise them liberty, they themselves are the servants of corruption: for of whom a man is overcome, of the same is he brought in bondage. 20 For if after they have escaped the pollutions of the world through the knowledge of the Lord and Saviour Jesus Christ, they are again entangled therein, and overcome, the latter end is worse with them than the beginning. 21 For it had been better for them not to have known the way of righteousness, than, after they have known it, to turn from the holy commandment delivered unto them. 22 But it is happened unto them according to the true proverb, The dog is turned to his own vomit again; and the sow that was washed to her wallowing in the mire."
If after they have escaped the pollutions of the world through the knowledge of Jesus Christ, and are again entangled therein, and overcome, the latter end will be worse with them than the beginning. If a man, having known the way of righteousness but later turn from the holy commandment delivered unto them, it would be as a dog which turned to his own vomit again, or as the sow that was washed to her wallowing in the mire. That's why Jesus told the woman caught in the act of adultery "go, and sin no more," and to the impotent man who was paralyzed for 38 years, "sin no more, lest a worse thing come unto thee."