Again, this goes contrary to 2,000 years of mainstream Evangelical, Reformed, Renewed and Pentecostal theologies for practically every Church denomination. Every textbook in Bible seminaries and Christian bookstores would say that even for the born again believer, continued sinning would damage his relationship with God.
If we say that we have fellowship with Him, and walk in darkness, we lie and do not practice the truth. But if we walk in the light as He is in the light, we have fellowship with one another, and. the blood of Jesus Christ His Son cleanses us from all sin. (1 Jn. 1:7)
Yes, we can have fellowship with God, but only as we walk in the light as He is in the light! Of course, if a Christian gets defiled in sin again, the Holy Spirit may not immediately leave him. However, if a believer walks in darkness, without genuine repentance, his fellowship with God would be damaged. Thereafter, if he persists in rebellious, willful sinning, without demonstrating any godly sorrow toward his sins, that fellowship with God would eventually be broken (Heb. 6:4-6; 10:26-27). As such, it is extremely presumptuous to think that sin would not break your fellowship or destroy your relationship with God.
Behold, the Lord's hand is not shortened, that it cannot save; nor His ear heavy, that it cannot hear. But your iniquities have separated you from your God; and your sins have hidden His face from you, so that He will not hear. (Isa. 59:1-2)
Let's read the first chapter of 1 John, and keep in mind two important questions: "Who was John's audience?" and 'What was he trying to accomplish in this letter?"
The audience was a confused church in Asia. The pastor there asked John to write a letter to help clear up some major doctrinal heresy called "Gnosticism." Gnosticism comes from the Greek word " gnosis", which means knowledge. The Gnostics were a group of people who believed they possessed superior spiritual knowledge. They believed that all flesh is evil and that only spirit is good. Because they believed that, they didn't believe that Jesus really came in the flesh - they believed He was an illusion. They also believed that because sin had to do with our flesh, there really wasn't sin - sin was also just an Illusion. (That's similar to people today who believe sickness is an illusion.) The church in Ephesus was filled with people who not only didn't believe Christ came in the flesh, they didn't believe sin was real.
"That which was from the beginning, which we have heard, which we have seen with our eyes, which we have looked at and our hands have touched - this we proclaim concerning the Word of Life" (I John 1:1). In other words, John is establishing that he was an eyewitness to the fact that Jesus truly did come in the flesh. He did this to convince the Gnostics that Jesus was not an illusion.
"We proclaim to you what we have seen and heard, so that you also may have fellowship with us. And our fellowship is with the Father and with His Son, Jesus Christ" (verse 3). This verse says two things. First, John repeats the fact that he, the rest of the apostles and other people saw Christ in the flesh. He wanted the Gnostics to realize that there were many people who could testify to the reality of Christ. Second, he is saying that there are some people in the audience who were not in the fellowship with Christ.
“Just as the heavens cannot be measured
and the foundations of the earth cannot be explored,
so I will not consider casting them away
for the evil they have done.
I, the Lord, have spoken!