May I be so bold as to suggest that this does not mean you can't sin (as you define that), and that your word is gospel. You have been led astray by deceiving spirits. You have been listening to voices that teach contrary to what the Bible says.
Just curious, are you an 'apostle' in the NAR movement?
I don't know what the NAR movement even is.
The CONTEXT of 1 John 3 is lawlessness. That is the type of sin verse 9 is speaking of that we have no desire to commit based on verse 4 the context of the whole chapter. Lawlessness is against God's laws, but the chapter has nothing to do with sins not unto death, only sins unto death against God's laws. This is exactly why it is so important to know the difference between the types of sins and how God views them, not John Calvin's "sin is sin" that can lead to major confusion to say nothing of ignorance about God. This brings us to 1 John 1:7 where if we walk in the light...the blood of Jesus cleanses us from all sin. Those sins are not sins unto death, but the lesser sins committed due to immature fruit, as John 15 is about, but can be dangerous to our salvation if we do not bear fruit. Not bearing fruit can lead back to lawlessness. So much for OSAS.
The reason why I feel secure in my salvation is because I've been walking in the Spirit for nearly 50 years, and bearing fruit is part of who I am. But many young people in the church are not walking in the Spirit. Couples living together, and even practicing homosexuals are being ordained as bishops! Whether or not these people were ever saved to begin with could be questionable, but to be examples in the Church is the falling away of 2 Thes. 2:3 which shows us that Jesus is returning soon for a SPOTLESS Bride.