…this is scriptural. I Corinthians 5 gives a complete synopsis of this teaching. Be advised, the scenario in this situation was incest, however it refers to ALL fornication, i.e. sexual unions outside of holy matrimony:
I Corinthians, Chapter 5
The incestuous person among them
1 It is actually reported that there is fornication among you, and such fornication as is not even among the Gentiles, that one of you hath his father’s wife. 2 And ye are puffed up, and did not rather mourn, that he that had done this deed might be taken away from among you. 3 For I verily, being absent in body but present in spirit, have already as though I were present judged him that hath so wrought this thing, 4 in the name of our Lord Jesus, ye being gathered together, and my spirit, with the power of our Lord Jesus, 5 to deliver such a one unto Satan for the destruction of the flesh, that the spirit may be saved in the day of the Lord Jesus. 6 Your glorying is not good. Know ye not that a little leaven leaveneth the whole lump?
The Christian church must be purged of the contamination of sinners, and separated from pagan influences
7 Purge out the old leaven, that ye may be a new lump, even as ye are unleavened. For our passover also hath been sacrificed, even Christ: 8 wherefore let us keep the feast, not with old leaven, neither with the leaven of malice and wickedness, but with the unleavened bread of sincerity and truth.
9 I wrote unto you in my epistle to have no company with fornicators; 10 not at all meaning with the fornicators of this world, or with the covetous and extortioners, or with idolaters; for then must ye needs go out of the world: 11 but as it is, I wrote unto you not to keep company, if any man that is named a brother be a fornicator, or covetous, or an idolater, or a reviler, or a drunkard, or an extortioner; with such a one no, not to eat. 12 For what have I to do with judging them that are without? Do not ye judge them that are within? 13 But them that are without God judgeth. Put away the wicked man from among yourselves.
1 Cor 5:1-13 (ASV)
Note the very last scripture, I Corinthians 5:13 “But them that are without God judgeth. Put away the wicked man from among yourselves.” Today, brazen fornicators are NOT purged. They live their ungodly lifestyles while attending church. Preachers, teachers and church leaders today often do not even confront or challenge their sin. They look the other way instead of being faithful to God. The problem is that these situations never resolve themselves. This is a church one would want to leave if they do not require repentance from the one(s) involved.
It would behoove the church and professing Christians to read the following passage from Ephesians 5 very carefully:
to flee fornication
3 But fornication, and all uncleanness, or covetousness, let it not even be named among you, as becometh saints; 4 nor filthiness, nor foolish talking, or jesting, which are not befitting: but rather giving of thanks. 5 For this ye know of a surety, that no fornicator, nor unclean person, nor covetous man, who is an idolater, hath any inheritance in the kingdom of Christ and God. 6 Let no man deceive you with empty words: for because of these things cometh the wrath of God upon the sons of disobedience. 7 Be not ye therefore partakers with them; 8 For ye were once darkness, but are now light in the Lord: walk as children of light 9 (for the fruit of the light is in all goodness and righteousness and truth), 10 proving what is well-pleasing unto the Lord; 11 and have no fellowship with the unfruitful works of darkness, but rather even reprove them; 12 for the things which are done by them in secret it is a shame even to speak of. 13 But all things when they are reproved are made manifest by the light: for everything that is made manifest is light. 14 Wherefore he saith, Awake, thou that sleepest, and arise from the dead, and Christ shall shine upon thee. 15 Look therefore carefully how ye walk, not as unwise, but as wise; 16 redeeming the time, because the days are evil. 17 Wherefore be ye not foolish, but understand what the will of the Lord is. 18 And be not drunken with wine, wherein is riot, but be filled with the Spirit; 19 speaking one to another in psalms and hymns and spiritual songs, singing and making melody with your heart to the Lord; 20 giving thanks always for all things in the name of our Lord Jesus Christ to God, even the Father;
21 subjecting yourselves one to another in the fear of Christ. 22 Wives, be in subjection unto your own husbands, as unto the Lord. 23 For the husband is the head of the wife, and Christ also is the head of the church, being himself the saviour of the body. 24 But as the church is subject to Christ, so let the wives also be to their husbands in everything. 25 Husbands, love your wives, even as Christ also loved the church, and gave himself up for it; 26 that he might sanctify it, having cleansed it by the washing of water with the word, 27 that he might present the church to himself a glorious church, not having spot or wrinkle or any such thing; but that it should be holy and without blemish. 28 Even so ought husbands also to love their own wives as their own bodies. He that loveth his own wife loveth himself: 29 for no man ever hated his own flesh; but nourisheth and cherisheth it, even as Christ also the church; 30 because we are members of his body. 31 For this cause shall a man leave his father and mother, and shall cleave to his wife; and the two shall become one flesh. 32 This mystery is great: but I speak in regard of Christ and of the church. 33 Nevertheless do ye also severally love each one his own wife even as himself; and let the wife see that she fear her husband.
Eph 5:3-33 (ASV)
…here is another scripture passage that is usually totally ignored by the church of today, thus rendering the church powerless-
“Them that sin reprove in the sight of all, that the rest also may be in fear.”
1 Tim 5:20 (ASV)
Here is a question to think about: Who is worse in the sight of the Lord? Those who engage in sexual sin without repentance and remorse, or the church that is aware of it and prefers to not address it?
When we ignore sin in our lives and refuse to repent, whether a church or an individual, we will suffer separation from the Lord God and punishment.
18 If I regard iniquity in my heart, the Lord will not hear me: