What Did Apostle John mean " A Sin That Leads To Death?"

Reading the context and also considering other parallel passages has convinced me that this sin unto death is irremediable separation from God. It certainly includes spiritual death but it is more than that. People who have sinned unto death would be those "twice dead" false teachers and also those who are cut off from the vine. These are the ones who are spewed out of Christ's mouth.

What they all have in common is a certain knowledge and profession of the truth of Christ, at least to a degree. This does not affect the teaching of perseverance of the saints. True believers will never come to this sin unto death, however far they may wander at times.

That death, biblically speaking, is primarily separation from God can be seen in the judgment that fell on Adam. He was warned that on the day he sinned he would die. And on that very day he did die - he was cast out from God's presence in the Garden.

What makes the twice-dead position of these false teachers so hopeless and heinous is the fact that they rejected New Testament light, which is clearer revelation of truth (John 15:22).

 

The passage in Jude (which you seem to be referring to) is speaking specifically to false teachers. There is nothing in James to indicate that here. I believe that you have taken the passage of James entirely out of its context as it is spoken directly to believers.

 

The passage I referred to, yes, is from Jude. But, no, it is not speaking to false teachers. Jude, like James and John, is written to believers. All three of these speak much about false teachers, especially the false teachers who sin against the greater of light of having been exposed to decades of Christian revelation.