Indeed, let's not re-define anything. That applies to re-defining "fire" into "Hell's fire" too, you know.
But cleansing is built into the very definition of the word for "
fire". You are the one "redefining" the passage by inserting "Hell" into the Text of John 15:6 for no good reason other than to make it "the clearest 'Bible' passage that demonstrate loss of salvation to you and why".
Fire = πῦρ, 'to purify'
http://biblehub.com/greek/4442.htm
Get it??? pyr, pyro, pur, purify. All three English words: Purify, Pyro, Fire all derive from the same original Greek word (through Latin).
Etymology of pure.
Pure comes from the Latin
purus, which
derives from the Greek pyr/pur (fire,
πύρ; gen: puros,
πυρός), as initially fire was used for cleansing.
https://ewonago.wordpress.com/tag/etymology-of-purify/
It's used all throughout the Bible for cleansing/purification:
Numbers 31:23a (LEB) everything that will go through the fire—you will pass through the fire, and it will be clean, and only in waters of impurity will it be purified.
Ezekiel 22:20(LEB) like the gathering of silver and bronze and iron and lead and tin to the middle of a furnace to blow fire on it for melting. Thus I will gather in my anger and in my rage, and I will deposit you [The house of Israel], and I will melt you.
Zechariah 13:9(LEB)
9 And I will bring the remaining third into the fire,
and I will refine them like one refines silver,
and I will test them like one tests gold.
They will call my name,
and I will answer them.
I will say, ‘They are my people,’
and they will say, ‘Yahweh is my God.’”
Malachi 3:2 (LEB) And who can endure the day of his coming? And who is the one who can stand when he appears? For he is like a refiner’s fire, like launderers’ alkali.
1 Corinthians 3:13-15 (LEB) the work of each one will become evident. For the day will reveal it, because it will be revealed with fire, and the fire itself will test the work of each one, of what sort it is. If anyone’s work that he has built upon it remains, he will receive a reward. If anyone’s work is burned up, he will suffer loss, but he himself will be saved, but so as through fire.
And we know why it's necessary for true Christians to go through this to:
1 Peter 1:7 (LEB) so that the genuineness of your faith, more valuable than gold that is passing away, but is tested by fire, may be found to result in praise and glory and honor at the revelation of Jesus Christ,