Whosoever transgresseth, and abideth not in the doctrine of Christ, hath not God. He that abideth in the doctrine of Christ, he hath both the Father and the Son. If there come any unto you, and bring not this doctrine, receive him not into your house, neither bid him God speed: For he that biddeth him God speed is partaker of his evil deeds (2 John 9-11).
This text of Scripture warns a church against receiving into its fellowship those who are transgressing the doctrine of Christ, not being content to abide in the doctrine of Christ. In our age of loose fellowship, it is a concept that is not readily accepted.
There can be no on-going fellowship with those who continue in the practice of their sin, defend it as an act of righteousness and invite others to participate with them in the practice of their sin. John did not think he could invite those Gnostic teachers of the first century who denied the humanity of Jesus to a special series of lectures on the evidences or the home, so long as they did not teach their loose views on the humanity of Christ. Those who taught these false doctrines could not be received, plainly and simply.
There are many other Scriptures that emphasis this same truth about fellowship. Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? And what communion hath light with darkness? And what concord hath Christ with Belial? Or what part hath he that believeth with an infidel? And what agreement hath the temple of God with idols? For ye are the temple of the living God; as God hath said, I will dwell in them, and walk in them; and I will be their God, and they shall be my people. Wherefore come out from among them, and be ye separate, saith the Lord, and touch not the unclean thing; and I will receive you, and will be a Father unto you, and ye shall be my sons and daughters, saith the Lord Almighty. Having therefore these promises, dearly beloved, let us cleanse ourselves from all filthiness of the flesh and spirit, perfecting holiness in the fear of God (2 Cor. 6:14-7:1).
And have no fellowship with the unfruitful works of darkness, but rather reprove them (Eph. 5: 11).
Too many people in the Lords church are ignoring the plain simple teachings of Gods word and allowing false teachers in among them. Please do your due diligence do not let these men in to corrupt you and lead you to hell.