I’m confused here on your distinction for the saved person. You say for the saved “they need to confess that sin to open the lines of communication,” but not whether - if we do not confess - He “forgives us our sins and cleanse us from all unrighteousness.”
You say no for the unsaved, I’m asking about the saved, if they do not confess.
Here is the moral of the story from the NT....We should not be stubborn idiots and refuse to confess our sins. Such an attitude would mean we are arrogant thinking we are better than God’s commands. If someone is in such a state of open rebellion to God, then Paul and Peter tell us to examine ourselves to see if we are in the faith.
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By Yeshua’s words, there is no salvation until the end, for anyone.
Matthew 24:
[12] And because iniquity shall abound, the love of many shall wax cold.
[13] But he that shall endure unto the end, the same shall be saved.
Can anyone show us a verse that says there can be salvation before the end?
As to confession and repentance 1John 1:9 is pretty clear that both are required (as many times as the Holy Spirit shows us a sin).
I guess I’m confused about exactly what you’re looking for.
I don’t think there’s any disagreement about the unsaved person.
As for the saved person, confession of sins needs to be made to open the lines of communication back up. The relationship is hindered if we continue in sin and do not confess it. If my kids disobey me and refuse to acknowledge their wrong, it stresses the relationship. They’re still my kids, but the relationship cannot progress as it should because of it.
If I’m still not answering your question, could you clarify it or reword it?