Sin is breaking the Law of God (1 John 3:4). World is full of sinners. As a sinner, we are separated from God (Isaiah 59:2). Jesus Christ came to the world (1 John 4:10) died to pay for our sins on the cross. Sin is like disease that corrupts the body same as Sin corrupts the soul to become evil. It brings calamity to all those who participate in it. Gods word gives us warning not to associate those who do evil “And have no fellowship with the unfruitful works of darkness, but rather reprove them” (Eph. 5:11). When we rebuke a person who lives in sin, he will hate us or he might defend himself by twisting the scriptures according to his sinful desires. Truth always offends those who are living in sin and darkness. "Ye cannot drink the cup of the Lord, and the cup of devils: ye cannot be partakers of the Lord's Table, and of the table of devils."1st Corinthians 10:21.
There are many people around us that even though they may not commit sins but directly or indirectly they consent or endorse with those who sins (Romans 1:29-32).Eg. of some excuses to partake in people sins are by Defending the sinner by arguments, or saying one was tempted , some may even partake in another's sin by simply not condemning the sin by Calling it as an occasional thing or social things or cultural thing or everyone does it or its good for health. The people who partakers of sins are often see things that are sinful, but they dare not to rebuke the sinner but they encourage the wicked. Ezek. 13:22 1Tim. 5:20; 2 Tim. 4:2 says be not partakers with the wicked," but "be partakers with the righteous. Even though we may think we are good enough, even one sin disqualifies us from being in the presence of God. David was an adulterer and murderer. Moses was a murderer, Abraham was a liar and coward, Jacob was a deceiver Yet, they were all considered righteous because the repented from their sinful ways and had a proper relationship with God .God forgave them and loved them. The unsaved person cannot understand God, nor His Word nor his commandments because he is not born without the Spirit of God in his soul because he is spiritually blinded .Gods word says “But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know them, because they are spiritually discerned" (1st Corinthians 2:14).
Scripture clarification on this:
Proverbs 11:20 - Those who are of a perverse heart are an abomination to the Lord, But the blameless in their ways are His delight.
Luke 17:3 - If your brother sins, rebuke him (. Matthew 18:15).
2 Timothy 2:24-26 - The Lord’s servant must correct those who have been taken captive by the Devil.
James 5:19- 20-We should seek to convert those who go into sin and error.
1 Timothy 5:22-Do not lay hands upon anyone too hastily and thereby share responsibility for the sins of others; keep yourself free from sin.
2 Cor. 6:17-Wherefore come out from among them, and be ye separate, saith the Lord, and touch no unclean thing; and I will receive you " .
Ephesians 5:11 Have nothing to do with the fruitless deeds of darkness, but rather expose them.
The Bible declares in 1 Corinthians 5: 11-13, But now I have written unto you not to keep company, if any man that is called a brother be a fornicator, or covetous, or an idolater, or a railer, or a drunkard, or an extortioner; with such one not to eat. Therefore put away from among yourselves that wicked person."
God loves us and He will forgive us if we are humble before him by confessing of our sins to him and to each other by putting our trust in Jesus, by walking in his commandments and asking Him to forgive us of our sins by our genuine repentance.
May God bless you as you seek to serve and obey Him!